The following questions are based on letter series in which some letters are missing. The missing letters are given in a proper sequence as one of the alternatives among the given four alternatives under each question
babbb-b-b-bb

Options

A. bba
B. bab
C. bba
D. aba

Explanation

To solve the letter series problem "babbb-b-b-bb", we need to identify the pattern in the sequence and fill in the missing letters accordingly.

### Step-by-Step Solution:

1. **Identify the Pattern**:
The given sequence is "babbb-b-b-bb". We can observe that there are groups of letters that seem to repeat.

2. **Break Down the Sequence**:
Let's break down the visible parts of the sequence:
- The first part is "babbb".
- The next part is "-b-" which indicates a missing letter.
- The following part is "-b-" which indicates another missing letter.
- The last part is "bb".

3. **Recognize the Repetition**:
From the first part "babbb", we can see that it contains a pattern. If we look closely, we can see that the sequence can be broken down into smaller repeating units. The sequence appears to follow a pattern of "BABB".

4. **Fill in the Missing Letters**:
- The first missing letter after "babbb" should be "a" (to complete the "BABB" pattern).
- The second missing letter after the first "b" should also be "a".
- The last part "bb" suggests that the sequence is still continuing.

5. **Construct the Complete Sequence**:
If we fill in the missing letters based on our observations, we get:
- "babbb" + "a" + "b" + "a" + "b" + "b"
- This results in "babbbababb".

6. **Final Sequence**:
The complete sequence is "babbbababb".

### Conclusion:
The missing letters in the sequence "babbb-b-b-bb" are "a", "a", and "b". Therefore, the complete sequence is "babbbababb".