Answer:
I'm not sure but i think the second one because alliteration means the occurrence of the same letter or sound at the beginning of adjacent or closely connected words and the second one has the letter B and there are closly connected words with the letter
(B) pronoun
A simple subject can either be a noun or a pronoun.
Answer:
I am pretty positive its the last one, "How computer viruses can be prevented"
Explanation:
Computer Viruses are the problem, and how they can be prevented is the solution
Answer:
The four principal types of bones are long, short, flat and irregular. Bones that are longer than they are wide are called long bones. They consist of a long shaft with two bulky ends or extremities.