Task: Question Answering
Input (English): Question: The youngest of 4 children has siblings who are 3, 5, and 8 years older than she is. If the average (arithmetic mean) age of the 4 siblings is 21, what is the age of the youngest sibling?

 Option A: 17

 Option B: 18

 Option C: 19

 Option D: 21

 Option E: 22
Output (English): Option A