Answer: Earplugs and Helmet
Step-by-step explanation:
The appropriate safety equipment to wear when operating a chainsaw includes:
D. Helmet
C. Earplugs
Wearing a helmet helps protect your head from falling debris and potential impact accidents. Earplugs are important to prevent hearing damage due to the loud noise generated by the chainsaw. While it's always good to take safety precautions, a mouth guard and latex gloves are not typically considered necessary for chainsaw operation.