Explanation:
Yes
It is. Also it's called a collective noun.
Is there a sentence?
Streaking across the sky was a pattern of lights, it could be a helicopter or an airplane.
Sentence B is the correct option. When using "however" to write a compound sentence, we should write a semi-colon before and a comma after it. When "however" is used at the beginning of a sentence, we should write a comma following it.
An alliteration is a sequence of words that all begin with the same later, such as the tongue-twister "she sells sea-shells on the sea shore".
The only alliteration that I find here is "silent sea" - so the correct answer as C, even though alliterations more often include more than two words, as in this case .
An example is the manipulation to kill and perform dark actions.