21. Which of the following is the best example of a part of the propulsion system of a tractor ? A. Engine
B. Front head light
C. Hood
D. Steering wheel

it's not c. i took the quiz and got it wrong. so my best guess is b.

have a great day, and hope this .

answerpotassium hydroxide preparation;

treatment of fungal infections usually follows diagnosis confirmed by potassium hydroxide preparation or culture;