A student has been assigned to perform five tasks-A, B, C, D. & E. The tasks are to be done in a particular order, which conforms to the following conditions: A must be done earlier than C. B must be done earlier than D. E cannot be the fifth task done. Which among the following is a pair of tasks that CANNOT both be done earlier than E

A A and D

B B and C

C A and B

D C and D

Solution

Correct Answer: Option D

Solution

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