Explanation:

Let's break down the series:

A, D, ?, BR, Y

- The series shows:

1. A (1st letter),

2. D (4th letter),

3. ?

4. BR

5. Y

- If we look at the pattern:

- A (1st in alphabet), D (4th), so it skips 2 letters (B, C).

- Next, let's check what would be the 7th letter in the alphabet (skipping 2 again: E, F).

- The 7th letter is G.

- After that, there’s BR, which is a combination but if you notice, alphabetically, B = 2, R = 18, and Y = 25.

- Possible pattern: The gap seems to increase.

- Now, checking the options:

1. I (Option 1) – 9th letter

2. H (Option 2) – 8th letter

3. J (Option 3) – 10th letter

4. G (Option 4) – 7th letter

- Based on the clear sequence: A (1st), D (4th), G (7th) — this makes the gap +3 each time.

- A ? D (+3), D ? G (+3), so G is the correct letter.

Correct Answer: Option 4 – G