1 is D.
2 I believe is A.
3 is D.
If a source is correct and trustworthy then it is credible, which means that you can use it in official research as a valid source without having your work discredited. This means that it is usable, and has a merit, and you can use it without being afraid of plagiarism or something else.
Answer:
you just answer your own question.
Explanation:
Through, what helps me is i read through it like this
jamie walked, how did she walk? cautiously, through,through what? the alley.
