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Question

Consider the group `ZZ_2(alpha)` and its proper subgroups. Which of the following statements is correct:
A) `ZZ_2(alpha)` has exactly 7 proper subgroups in total, all of which are of order 2 and isomorphic to `ZZ_2`.
B) `ZZ_2(alpha)`has 14 proper subgroups in total, 7 subgroups of order 2 isomorphic to `ZZ_2`, and 7 subgroups of order 4 isomorphic to `ZZ_2 times ZZ_2`. ?