Which sentence contains an example of a simile? a. "after the rains, it seemed as though the air had been washed clean and the rays of the sun looked like pure gold." b. "so bright were they, that they made even the sordid brick-walls of our calcutta lanes radiant." c. "since early dawn the wedding-pipes had been sounding, and at each burst of sound my own heart throbbed." d. "the wail of the tune, bhairavi, seemed to intensify the pain i felt at the approaching separation."