The following is that same text encrypted in three different ways. You are told that one is the result of an affine encr

[answerhappygod]

The following is that same text encrypted inthree different ways. You are told that one is the result of anaffine encryption, and that the other two used Vigenère ciphers,whose keywords were length 4 and 8. Analyze thethree ciphertexts, and explain how you know which is which, usingthe Index of Coincidence. Make sure you describe what you did alongthe way.
a.)
rsoborgwuvrvviakorgjafskxmnxygaehitvjmolyenuojtykgignirzyqoeuelgnebvzmckninknikrymsboxejzhovyrtykpplyenpnswtgrwvzilclvodzlejzerkcleknirfxrokurefxqoikelgnebvzwaikfeztkujkhtykmdvgleikmsknetknifikuuvtgykgflvujaeswcjnsucjpofqpibkxhvurewuvskgrdrxheempijnnujzaiknxhvritkkvsdgxcyorguojfvxinklvehaintoiskniwreaerixurrpyxuebfaxmvgwuiorgknmszyelzzxlvjmfwkveezjrfsxhzyfukoxgvzwakzlejgqeknmnxciujkxhvordvdsftumntoheeii
b.)
svvrpunmvyylwlhapunzbizaypunzjhuilalkpvbzhukpmaoljpwolypztvuvhswohilapjaoluaolrhzpzrpalzakvlzuaolswbzhufovdjhudlalssmyvtaolzahyadolaolyvyuvavulvytvylhswohilazhylilpunbzlkaolpklholylpzaohaaolmylxblujfahislvmhutzjzovbsksvvrsprlaolvulmvyzahukhyklunspzoqbzadpaoaolslaalyzthajopunkpmmlyluamylxblujplzaoldhfdlhjabhssfnvhivbatlhzbypunaopzpzhspaaslkpmmlyluamyvtaopzibapanlazhaaolzhtlaopundlbzlaolpuklevmjvpujpklujl
c.)
ncazcgkwqfdtjxekkbshouwktwzvmveedsftxbsluozscyxygquebxvzuaacitpgjontnbgkjszibxoruwezcmijvratmgxygzbjmtrpjcirugavvsxazksdvvqhntvkyvqibxvftbaiigiftaagytpgjontnleigpqxhzyjgrfwybhvcvqgybwkjofibxjigegthvckcpxtiyeeogohbhycfzadeembghttigiwqfeiughrtrqcaemjjxghnpmkjhttfxxkgfebumgykbsscyjvtszizkihwszrcxwkjsipspirehgpfecxqondomqvcgggcgkkjwexmtpzvhxtxbjwgfqcnyvfohtxmuykkhstnlekvvqhufikjwzvqxyjghttcghvzcrribrtkrqcwx