It’s between the first and last one
The answer is A, or By underlining or italicizing it. Doing so draws eye-coordinated attention and emits a connotation that the word is significant to something more overlying than what is said.
I believe its 1. i think 1 because if you read all the answers aloud to yourself, you can hear the mistake. When you use the word “either” its giving you an option to choose.