Correct Option: A

differ (Verb) : to be different from somebody/something; to disagree with somebody
conform (Verb) : to behave and think in the same way or most other people in a group or society; to obey a rule, law, etc; comply; to agree to or match something
reject (Verb) : to refuse to accept or consider something
question (Verb) : to ask somebody a question
ignore (Verb) : to pay no attention to something; disregard; take no notice of