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: Most resistors have three coloured bands close together at one end and ____ single band at the other.\Question: Choose the right answer from options given a) two b) one c) ten d) five

Output: b


Input: Consider Input: Litters contain from one to ____ kittens, and tend to be much larger when prey is abundant.\Question: Choose the right answer from options given a) three b) four c) two d) seven

Output: b


Input: Consider Input: Polymorphism consists of ____ root words, poly and morph.\Question: Choose the right answer from options given a) eight b) one c) zero d) two


Output: d