To find the missing term in the given sequence, let's analyze the pattern:
The sequence starts with "B2CD" and ends with "BC6D".
Looking closely, we can see that the letters "B", "C", and "D" remain consistent in each term of the sequence.
The number in each term increases by 1, starting from 2 and ending at 6.
Therefore, the missing term in the sequence is the one where the number is 3.
The correct answer is B) BC3D, which follows the pattern of the sequence.