Guests can visit the launch center, countdown clock, and a mission control center
"he spoke SHARPLY to his sister" is the one sentence among the following choices given in the question that <span>contains a correctly used modifier in italics. The correct option among all the options that are given in the question is the third option or option "C". I hope that the answer has come to your desired help.</span>
It means to be silly or stupid.
Ex. "Don't constantly badger people with inane questions."
This passage is meant to invoke a sense of national unity towards a common enemy. Wars are often seen as uniting in the sense that they bring people in a nation together.