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').

Input: Consider Input: Habitat destruction is a concern for all ____ gorilla subspecies.\Question: Choose the right answer from options given a) no b) four c) three d) five

Output: b


Input: Consider Input: Springtails reproduce quickly usually within three to ____ weeks.\Question: Choose the right answer from options given a) five b) six c) nine d) three

Output: a


Input: Consider Input: Red meat has twice as much iron as chicken and ____ times as much as fish.\Question: Choose the right answer from options given a) three b) six c) one d) nine


Output: a