instruction:
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').
question:
Elephants give birth to ____ calf every four to nine years on average.\Question: Choose the right answer from options given a) ten b) one c) eight d) six
answer:
b


question:
Sexual maturity occurs at three to four years for females and ____ to five years for males.\Question: Choose the right answer from options given a) nine b) seven c) five d) four
answer:
d


question:
Most dinoflagellates are unicellular forms with ____ flagella .\Question: Choose the right answer from options given a) seven b) ten c) two d) no
answer:

c