How did Einstein like to play in childhood?

Correct answer: Alone

Einstein preferred to play alone during childhood, so option C is correct. This preference agrees with the chapter’s description of him as quiet, solitary and inward-looking. Solitary play does not necessarily mean that a child is unhappy or unable to make friends; in Einstein’s case, it suggests that he was comfortable observing, thinking and exploring ideas by himself. Option A presents the opposite social pattern, while B and D add locations or activities that are not stated in the biography. The question tests a textual detail, so the answer should be based on the described habit rather than on assumptions about how all children usually play. His independent childhood nature later appeared in his willingness to think differently.