A pharmacist has just given a vaccine to a patient. The pharmacist unknowingly hit a vein, so when she removed the needle blood squirted out and onto the pharmacist's face. What is the first thing the pharmacist should do$?$

A$)$ Alert her supervisor.

B$)$ Wash the area with soap and water.

C$)$ Call $911$ for immediate medical care.

D$)$ Apply an antiseptic to the affected area.