Select the letter of the correct answer. Which of the following is a good way to identify personal error patterns?

A) Read your returned papers and study the errors marked by the instructor.
B) Read a book about grammar.
C) Read your classmates' papers and notice the mistakes they make.

Reading your returned papers and studying the errors marked by the instructor is the best way to identify personal error patterns as it directly relates to your own work and the feedback you received. Reading a book about grammar can be helpful but may not necessarily address your specific errors, and reading your classmates' papers may not be useful as they may not make the same mistakes as you.