<span>Because they wanted to extend and perpetuate slavery.</span>
The correct one is d I hope it helps you
The correct answer is - When studying mythology, I learned about several gods and goddesses: Zeus, Apollo, Aphrodite, Hermes, and Hercules.
This is the only sentence which is punctuated correctly because the first part (before the list) ends abruptly; it is obvious that something needs to be placed there. In this case, that is a colon.
The other sentences have leading words (particularly, such as, were) that don't require a colon after them.
It is the evening before Dorian's thirty-eighth birthday, and he has dined with Lord Henry.
