Assuming the underlined word is 'singing,' the correct answer is going to be A. participle.
A participle and a gerund look the same - they both end in -ing. However, participles are used as adjectives (as is the case here), whereas gerunds are used as nouns. Infinitives always have the same form, which is TO + verb.
Answer:
Qin Shi Huang, decided that he wanted a single giant wall to protect his northern borders.
Explanation:
The first one is not true directly. However they use the media for fundraiser announcements and pleas for more money. This is probably the second best answer.
I think B is the answer. The media is intended to communicate information. What elected officials are doing is information <<<<
Unfortunately C is also correct. The media is used to spread messages (sometimes labeled propaganda.) Which to pick?
And so is D. Gallop polls certainly are of great interest to the media, also as much as they are of interest to the elected officials.