I got this question wrong. I’m not sure which answer is
correct?
10. The engine is...
10. The engine is low on power and uses a lot of fuel. Black smoke comes out of the muffler, and it misfires most noticeably on rough ground and while turning corners. The spark plug fowls out after the engine runs for a while. Tech A says that the engine needs new piston rings. Tech B says that the engine needs the carburetor and choke repaired. Who is correct? ④ Tech A B. Tech B C. Both A & B D. Neither A nor B