Correct option is C
The correct answer is option (c).
The passage states: “Presence of wide space inside the cave also indicates that it was used by pre-historic human groups as their habitation.” This directly tells us that the
wide space in the cave is what points to it being used as a living area.
Other options are incorrect because:
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(a) The paintings of human beings show artistic expression, not necessarily habitation.
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(b) The presence of rock paintings is historical evidence but does not indicate living space.
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(d) A cup mark was found outside the cave and isn’t connected with habitation.