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You answered "D". Click "CONTINUE" to proceed to the next question.
Interesting fact:
A dog’s sense of smell is almost like a super-power! It’s estimated to be 10 – 100 thousand times stronger than a human's. Their ability to detect different smells is so acute that some are trained to detect medical conditions such as cancer. Some dogs are even being trained to detect Covid-19. Talk about man’s best friend!