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: Waves can sometimes reach ____ feet tall, while still being playful and fun.\Question: Choose the right answer from options given a) nine b) eight c) ten d) no
Example Output: c

Example Input: Corms are undifferentiated, uniform, and contain ____ rings when cut apart.\Question: Choose the right answer from options given a) no b) three c) one d) zero
Example Output: a

Example Input: Food usually remains in the stomach for three to ____ hours.\Question: Choose the right answer from options given a) nine b) zero c) eight d) four
Example Output:
d