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').

[EX Q]: Spores have ____ combinations of sexes.\Question: Choose the right answer from options given a) four b) five c) seven d) three
[EX A]: a

[EX Q]: Cows can be up to ____ times more active than normal while in heat.\Question: Choose the right answer from options given a) eight b) nine c) two d) six
[EX A]: a

[EX Q]: Mature bulls have large sets of antlers, usually with ____ points, called tines, on each side.\Question: Choose the right answer from options given a) zero b) six c) two d) no
[EX A]:
b