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]: Human rabies is extremely rare, and there have been no cases in Oregon in the last ____ years.\Question: Choose the right answer from options given a) nine b) five c) ten d) eight
[EX A]: d

[EX Q]: Healthcare providers diagnose ____ general types of insomnia.\Question: Choose the right answer from options given a) two b) eight c) one d) three
[EX A]: a

[EX Q]: Information collected by the ____ senses comes into the brain from the spinal cord to the cortex.\Question: Choose the right answer from options given a) no b) five c) four d) three
[EX A]:
b