C. himself
There are eight reflexive pronouns in total: myself, yourself, himself, herself, itself, ourselves, yourselves, themselves. If you memorize those, you'll be set.
To have peace, we must go to war. To achieve something, you must do the opposite, which is an oxymoron, or an example of one. Example- "pretty ugly" or "quiet presence".
By not ruining the atmosphere with smog and other offensive chemicals but honestly we already pasted the point of no return