Given a sentence with a missing word, pick the answer option that best fills out the missing word in the sentence. Indicate each answer with its index ('a', 'b', 'c', 'd').

Twin souls are the last ____ souls to individualize.\Question: Choose the right answer from options given a) two b) ten c) zero d) six
a

Color codes are ____ digit combinations of letters and numbers that correspond to a specific color.\Question: Choose the right answer from options given a) six b) eight c) seven d) one
a

Homosexuals are ____ times more likely to commit suicide than heterosexuals and more are alcoholics.\Question: Choose the right answer from options given a) ten b) no c) six d) seven

c