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').

Example Input: Smallmouth bass grow to ____ inches in their first growing season.\Question: Choose the right answer from options given a) five b) four c) seven d) ten
Example Output: a

Example Input: Tropical trees can be rampant growers, and can outgrow a wiring in as little as ____ days' time.\Question: Choose the right answer from options given a) four b) eight c) six d) ten
Example Output: d

Example Input: Adhesions frequently develop during the first three to ____ days after surgery.\Question: Choose the right answer from options given a) five b) seven c) no d) nine
Example Output:
a