Task: Question Answering
Input (English): Question: There are two examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same. If 20 candidates are sent from B to A, then the number of students in A is double the number of students in B. The number of students in room A is:

 Option A: 100

 Option B: 110

 Option C: 112

 Option D: 115

 Option E: 119
Output (English): Option A