Answer:
Marco recycled the empty soda can.
I hope this answers your question for i wasn't given a source or an excerpt so i looked it up.
"<span>When he is first seen by Faustus, he is horrendously ugly. Faustus immediately sends him away and has him reappear in the form of a Franciscan friar. The mere physical appearance of Mephistophilis suggests the ugliness of hell itself."
Technically this is not a math equation so i hope its ok to quote. </span><span />
I think that the speaker seems indifferent, because there are many differences between man and nature .
The correct answer is
<span>d. The person |who sells souvenirs| is in the lobby.
Without it, the subject "the person" would be very ambiguous and the sentence would not carry any specific meaning.</span>