Olsen & Alain, CPAs (O&A) performed the audit of Rocky Point Brewery (RPB), a public company in 20X1 and 20X2. In 20X2, O&A also performed internal audit outsourcing related to RPB's internal accounting controls. Which statement best describes how the internal audit services affected O&A's independence in 20X2 under SEC independence rules?

A. O&A was not independent due to self-audit and management participation concerns.

B. O&A was not independent unless management approved its internal audit services

C. O&A was independent if the fee for the internal audit services did not exceed 5% of its revenue

D. O&A was independent because more auditing is always beneficial to a company