Choose the missing terms out of the given alternatives : A, B, B, D, C, F, D, D, H. E, ?, ?

The correct answer is E. J, F.

The sequence is a simple alternating repetition of two patterns: A, B, B, D and C, F, D, D. The first pattern is repeated three times, and the second pattern is repeated twice. The next term in the sequence is therefore F, which is the first term of the second pattern. The next term after that is J, which is the first term of the first pattern.

Option A is incorrect because F is not the first term of the second pattern.

Option B is incorrect because G is not a term in the sequence.

Option C is incorrect because I is not a term in the sequence.

Option D is incorrect because J is not the first term of the first pattern.

Option E is the correct answer because F is the first term of the second pattern and J is the first term of the first pattern.