I would say C, Definitions - because dictionaries are used to see what the words mean in usually a brief explanation and there is no history or language origins (some specific ones may but not ALL DICTIONARIES)
Answer: i ain't sure sure but i think B.
Explanation: B
Nikita is the only witness to see you doing it but she made it up
To prove your innocence you would have to been with other people they would serve as witness saying you didn't do it even when you know you didn't in order to prove your innocence.
I'm not sure if it answers your question
Modern life is lonely,gloomy,and unnatural.