<span>Speculate, in terms of the microscopic surface irregularities, about why µk<µs, and what effect a lubricant has on the coefficient of friction</span>
I think it is A and d let me know if i am wrong
The title could be interpreted as a story about a man's dream and the confusion of was he dreaming or did that actually happen. Or it could be interpreted as a delusion a man had and he is having trouble figuring out the difference between reality or imagination.
