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').

[EX Q]: Genetic mapping divides the chromosomes in ____ bands.\Question: Choose the right answer from options given a) ten b) two c) four d) nine
[EX A]: b

[EX Q]: Lines of force are ____ dimensional, surrounding a bar magnet on all sides.\Question: Choose the right answer from options given a) eight b) three c) zero d) no
[EX A]: b

[EX Q]: Recurrent miscarriage is defined as the loss of ____ or more consecutive pregnancies.\Question: Choose the right answer from options given a) three b) six c) ten d) zero
[EX A]:
a