Evaluate Which of the Following Scenarios Would LEAST Contribute to Customer

Evaluate which of the following scenarios would LEAST contribute to customer satisfaction.

A) A medical office receptionist tells a patient to "have a seat," without making eye contact.
B) A phlebotomist fumbles with equipment assembly and does not appear ready to perform the blood collection.
C) A healthcare worker encounters a lost visitor and assists this person to his/her destination.
D) Every health care worker a visitor encounters greets him cheerfully and asks if he needs assistance.