Which statement best describes full-flow and bypass oil filtration?

• A. Bypass filters a portion of oil may pass through without filtering when the main filter is blocked or during certain conditions.
• B. Full-flow filters a portion of oil; bypass filters all oil.
• C. Full-flow filters all circulating oil through the filter; bypass filters a portion of oil may pass through without filtering when the main filter is blocked or during certain conditions.
• D. Both filters filter oil identically in all situations.

Answer: (B)