You decide to map username to favourite games, e.g., You’re undecided about what kind of Map to use, e.g., Which option

[answerhappygod]

You decide to map username to favourite games, e.g.,
You’re undecided about what kind of
Map to use, e.g.,
Which option reflects best practice when creating this Map?
a) Map<String,String[]> usernameToFavouriteGames = new
HashMap<>();
b) HashMap<String, String[]> usernameToFavouriteGames
= new TreeMap<String,String[]>();
c) HashMap usernameToFavouriteGames = new
HashMap<>();
d) LinkedHashMap<String,String[]>
usernameToFavouriteGames = new Map<>();