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: Females inherit ____ X chromosomes, one from each parent.\Question: Choose the right answer from options given a) five b) two c) no d) seven
Example Output: b

Example Input: Verbs have ____ functions in sentences.\Question: Choose the right answer from options given a) two b) eight c) no d) ten
Example Output: a

Example Input: Preeclampsia occurs without warning in up to ____ percent of all pregnant women.\Question: Choose the right answer from options given a) five b) six c) one d) zero
Example Output:
a