The subordinate clause is "when the delivery man arrives" (option c.) because 1. it is introduced by "when" and 2. we can ask question to the main clause about this one.
The content of the speech was the same. While watching, however, you could see facial expressions, body movements, and expressions and changes in voice to show emphasis and emotion.
a. A chemist has come up with an idea for using citrus waste to produce ethanol, which is added to gasoline to reduce air pollution.
Answer:
<em><u>Freak says we can't expect her to understand, because you can't really get what it means to be Freak the Mighty unless you are Freak the Mighty.”</u></em>
