Utilizing C++ programming in basic C++ terms, could someone assist in answering the 1 question below please? After quest

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Utilizing C++ programming in basic C++ terms, could someoneassist in answering the 1 question below please? Afterquestion one the code and the text files are provided to helpin answering the question.
1.Selecting and Displaying Puzzle
After the player chooses a category, your program must randomlyselect a puzzle in that category from the array of Puzzle structs.Since a puzzle in any category can be randomly selected, it isimportant to repeatedly generate random numbers until a puzzle inthe desired category is found. After selecting the puzzle, it isdisplayed to the player with the letters “blanked off”. Thecharacter ‘#’ is used to hide the letters. If there are spaces ordashes (‘-‘) in the puzzle, these are revealed to the player, forexample, the puzzle “FULL-LENGTH WALL MIRROR” would be displayed asfollows:
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struct Puzzle{string category;char puzzle[80];};
void readCategories(string categories[]){ifstream inputFile;string word;int i = 0;inputFile.open("Categories.txt");if (!inputFile.is_open()) {cout << "Error -- data.txt could not be opened." <<endl;}while (getline(inputFile,word)) {categories = word;i++;}inputFile.close();}
void readPuzzles(Puzzle puzzle[]){ifstream inputFile;Puzzle puzzles[80];string categories;int numberOfPuzzles = 0;inputFile.open("WOF-Puzzles.txt");if (!inputFile.is_open()) {cout << "Error -- data.txt could not be opened." <<endl;}inputFile >> categories;while(getline(inputFile,categories)){puzzles[numberOfPuzzles].category = categories;inputFile.getline(puzzles[numberOfPuzzles].puzzle,80);numberOfPuzzles++;}inputFile.close();}
void chooseCategory(string categories[]){srand(time(0));categories[50];string randomCategory1;string randomCategory2;string randomCategory3;int choice;readCategories(categories);for(int i = 0; i <= 19; i++){categories;randomCategory1 = categories[rand() % 19];randomCategory2 = categories[rand() % 19];randomCategory3 = categories[rand() % 19];}cout << "1." << randomCategory1 << endl;cout << "2." << randomCategory2 << endl;cout << "3." << randomCategory3 << endl;cout << "Please select one of the three categories tobegin:(1/2/3)" << endl;cin >> choice;if (choice < 1 || choice > 3){cout << "Invalid choice. Try again." << endl;cin >> choice;}cout << endl;if(choice == 1){cout << "You selected: " << randomCategory1 <<"." << endl;}else if(choice == 2){cout << "You selected: " << randomCategory2 <<"." << endl;}else if(choice == 3){cout << "You selected: " << randomCategory2 <<"." << endl;}
}
Categories textfile:
Around the HouseCharacterEventFood & DrinkFun & Games
WOF-Puzzles textfile:
Around the HouseFLUFFY PILLOWSAround the HouseFULL-LENGTH WALL MIRRORCharacterWONDER WOMANCharacterFREDDY KRUEGER
EventROMANTIC GONDOLA RIDEEventAWESOME HELICOPTER TOURFood & DrinkSIGNATURE COCKTAILSFood & DrinkCLASSIC ITALIAN LASAGNA
Fun & GamesFLOATING DOWN A LAZY RIVERFun & GamesDIVING NEAR CORAL REEFSFun & Games