Answer: The answer D: Decreased metabolism
Decreased metabolism is not a benefit of strength training.
Explanation: Metabolism refers to the process involved in converting what an individual eat and drink to energy. An individual metabolism is the rate at which he or she "burn off" energy from the food eaten or the drink taken. While an individual is at rest, the body needs energy for breathing, circulating blood and repairing cells.
An individual does not have energy because he or she is does not have enough metabolism.
Thus, increased metabolism is a benefit of strength training.