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').
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Question: All quetzals have ____ legs.\Question: Choose the right answer from options given a) four b) zero c) eight d) ten

Answer: a


Question: Conflict diamonds account for less than ____ per cent of world trade in rough diamonds.\Question: Choose the right answer from options given a) two b) four c) one d) ten

Answer: b


Question: Hexadecimal codes are combinations of ____ numbers and letters that identify a specific color.\Question: Choose the right answer from options given a) six b) four c) nine d) five

Answer:
a