Which of the following are examples of endogenous sources of transmission?ANSWERContaminated food and waterBats, racoons, and foxesCandida albicans (pathogenic strain of yeast)Contaminated medical equipment

The endogenous sources of transmission from the options provided are:

Candida albicans (pathogenic strain of yeast)

Endogenous sources refer to infections that originate from within the body. Candida albicans, a type of yeast that can cause infection, is a part of the normal flora of the human body, and can cause infection when the body's immune system is compromised.

The other options listed - contaminated food and water, bats, raccoons, and foxes, and contaminated medical equipment - are examples of exogenous sources of transmission, meaning they originate outside the body.