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').

Honeybees have ____ jobs.\Question: Choose the right answer from options given a) ten b) one c) three d) two
d

Pistillate flowers have a compound ovary with ____ locules topped by three sticky, sessile stigmas.\Question: Choose the right answer from options given a) zero b) three c) six d) seven
b

Zirconia can exhibit ____ different crystal structures depending on temperature.\Question: Choose the right answer from options given a) three b) four c) ten d) six

a