Answer:
c. ignoring social conventions
Step-by-step explanation:
Email totally ignores social conventions, which are norms and agreements that allow life in society. The email, greet the person who should receive this email. Social conventions require us to greet people before we talk about our purpose with email, in addition, the person who wrote the email should identify himself. So we can say that email would be correct if it were written as follows:
"Dear Mr. Lopes.
I dropped an application off last week and was wondering if anyone had a chance to look over it yet. Get back to me, please.
Sincerely, Natalia camara."