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').

Input: Consider Input: Firebrat eggs hatch in about ____ weeks.\Question: Choose the right answer from options given a) ten b) one c) two d) no

Output: c


Input: Consider Input: 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

Output: d


Input: Consider Input: Proximate acts have ____ characteristics.\Question: Choose the right answer from options given a) zero b) two c) eight d) three


Output: b