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: Parapsychologists have ____ basic approaches to their subject matter.\Question: Choose the right answer from options given a) three b) two c) ten d) five

Output: b


Input: Consider Input: Elk retain their antlers for more than ____ months of the year.\Question: Choose the right answer from options given a) nine b) ten c) six d) seven

Output: c


Input: Consider Input: Liquids usually descend in three to five seconds, and solids in ____ to twenty seconds.\Question: Choose the right answer from options given a) eight b) six c) no d) two


Output: a