ANSWER
<em>Maria</em><em> </em><em>is</em><em> </em><em>an</em><em> </em><em>engineer</em>
Out of all the pronouns, "whom" makes the most sense grammatically. This allows us to narrow it down to A or D.
In order for it to be the object of a preposition, there would have to be a preposition in front of it. "For," however is <em>not</em> a preposition. In fact, there isn't a preposition in the whole question.
This leaves us with option D, which is the correct answer.
You can better tell it's a direct object if you flip the sentence around a bit.
Your sister is waiting <em>for whom</em>?
"Whom" is essentially receiving the action. "Whom" is what your sister is waiting for.
Answer: D. whom; direct object.
These lines represent the climax of the poem:
"She looked down to Camelot.
<span>Out flew the web and floated wide; </span>
<span>The mirror cracked from side to side; </span>
"The curse is come upon me," cried
<span> The Lady of Shalott."
</span>
It is the moment when everything changes in the poem. It builds up to this moment and as soon as she looks outside the mirror breaks and she ends up dying in the falling action.
