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A weightlifter lifts a weight off the ground and holds it up, then

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no work is done in lifting the weight but work is required to be done in holding it up.

no work is done in both lifting and holding the weight

work is done in lifting as well as holding the weight.

work is done in lifting the weight but no work is required to be done in holding it up

answer is C.

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Detailed Solution

When a weightlifter lifts a weight by height h(say), then Work done by the lifting force F:

$W_{1}$ = Fs cos $0^{0}$ = +Fs

But work done in holding it up is zero because the displacement is zero.

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