Five tasks—A, B, C, D, and E—must be performed in a specific sequence, one after another, according to the following rules:
- B must be performed at some point before E.
- C must be performed immediately after A.
- D cannot be the first or the last task.
Which of the following is a valid sequence of tasks?
-
A
A, B, C, D, E
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B
B, D, E, A, C
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C
B, A, C, D, E
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D
D, A, C, B, E