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The term that represents the ability of muscles to lift light weight for a long period of time is "D. muscular endurance."
Muscular endurance is the ability of a muscle or group of muscles to sustain repeated contractions against a resistance for an extended period. It enables you to perform activities like lifting lighter weights or doing multiple repetitions without getting tired quickly. This aspect of fitness is essential for activities that require prolonged muscle exertion, such as endurance sports, long-distance running, or cycling.
In contrast, muscular strength (option A) refers to the maximum amount of force a muscle can exert in a single effort. Aerobic exercise (option B) and anaerobic exercise (option C) are related to cardiovascular fitness and short bursts of intense activity, respectively, rather than the ability to lift light weight for a long period of time.
Therefore, in the context of lifting light weights for an extended duration, the term that best fits the description is "D. muscular endurance."
