Task: Question Answering
Input (English): Question: A sells an article to B at a profit of 10% B sells the article back to A at a loss of 10%. In this transaction:

 Option A: A neither losses nor gains

 Option B: A makes a profit of 11%

 Option C: A makes a profit of 20%

 Option D: B loses 20%

 Option E: None of these
Output (English): Option B