The correct answer is B. Imitation.
An imitation is something that is made to look like something else, but is not the real thing. For example, a fake Rolex watch is an imitation of a real Rolex watch.
An original is something that is the first of its kind. For example, the Mona Lisa is an original painting by Leonardo da Vinci.
Trustworthy is someone who can be relied on to do what they say they will do. For example, a trustworthy friend is someone who you can always count on to be there for you.
Loyal is someone who is faithful to their friends, family, or country. For example, a loyal soldier is someone who will fight for their country even in the face of danger.
In the context of the question, “fake” is the opposite of “original.” A fake is something that is not the real thing, while an original is the first of its kind.