Six puppies- K, L, M,S, T, U- must each be scheduled for examination by a veterinarian. The puppies are to be examined one at a time is six consecutive time slots on the same day according to the following conditions: M cannot be examined immediately before or immediately after S. L must be examined immediately before U. K must be examined fourth. Which of the following is an acceptable examination schedule for the puppies, in order from first examined to last examined?

A L, T, S, K, M, U

B L, U, T, K, S, M

C M, T, S, L, U, K

D S, T, M, K, L, U

Solution

Correct Answer: Option D

Solution

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