Answer:
The correct answer is letter "C": The appearance of a business letter can send nonverbal messages about a sender to a receiver.
Step-by-step explanation:
Nonverbal messages are non-explicit signs that may allow one to have a general idea of how other is. If a business letter does not follow a formal format, the receiver could believe that the person writing is not well-trained or simply that is not meticulous enough to realize self mistakes. That situation may even lead to one party reconsidering to continue making business with the other.