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').

Ants have ____ distinct body parts.\Question: Choose the right answer from options given a) nine b) zero c) no d) three
d

Most herbal formulas contain ____ to twelve herbs in various combinations.\Question: Choose the right answer from options given a) four b) no c) seven d) six
d

Caterpillars tunnel into stems and feed for up to ____ weeks, then pupate in the soil.\Question: Choose the right answer from options given a) no b) six c) five d) one

b