Task: Question Answering
Input (English): Question: Ifaequals the sum of the even integers from 2 to 20, inclusive, andbequals the sum of the odd integers from 1 to 19, inclusive, what is the value of b - a ?

 Option A: -10

 Option B: 10

 Option C: -19

 Option D: 20

 Option E: 21
Output (English): Option A