Direction: Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it.
- 
					 b _ y_ _ by _ b _ yt
- 
                        - bgtbt
- btbtb
- atbbt
- cbbte
 
Correct Option: B
The given letter series in below pattern.
b b y t 
After completing the pattern, we will get complete letter series.
b b y t / b by t / b b yt
 
	