Please Identify What Type of Error the Following Sentence Includes

Multiple Choice

Please identify what type of error the following sentence includes: My supervisor said, "My favorite saying is "The early bird catches the worm" because I've found it applies in all situations."

A) Capitalization
B) Punctuation other than commas or semicolons (including hyphens and apostrophes)
C) Commas or semicolons
D) Number expression (word or figure form)
E) Symbols (including dollar and percent signs)