DIRECTIONS for the question: The following question consists of six statements (A, B, C, D, E and F) followed by options consisting of three statements put together in a specific order.
Choose the option which indicates a valid argument containing logically related statements that is, where the third statement is a conclusion drawn from the preceding two statements.

A. Some abra are dabra
B. All abra are cabra
C. All dabra are abra
D. All dabra are not abra
E. Some cabra are abra
F. Some cabra are dabra

BCE (Option A): Since all abra are cabra (B) and all dabra are abra (C), then by nesting the sets, it is logically certain that some cabra are abra (E).

AEF (Option B): Knowing some abra are dabra (A) and all abra are cabra (B) proves some cabra are dabra, but some cabra are dabra (F) is redundant as a conclusion for this specific sequence's internal logic.

ABD (Option C): Some abra are dabra (A) and all abra are cabra (B) actually contradicts the conclusion that all dabra are not abra (D).

BCF (Option D): If all abra are cabra (B) and all dabra are abra (C), it proves all dabra are cabra, but it doesn't inherently link them to the specific subset "some" in a way that makes some cabra are dabra (F) the primary logical conclusion.

FEB (Option E): Knowing some cabra are dabra (F) and some cabra are abra (E) does not provide enough information to conclude that all abra are cabra (B).

Thus, the answer is Option A.