In the following questions some of the sentences have errors and some have none. Find out which part of a sentence has an error. If there is no error, answer will be No ErrorQuestion: I really do regret not to learn to play the violin when I had so many opportunities to learn and practice in school.

• A. to learn and practice in school
• B. No error
• C. I really do regret not to learn to play the violin
• D. When I had so many opportunities