3. What are the 4 correct GMP rules for the factory
a. I can wear my watch
b. I must wear a hair net
c. I need to wear safety boots
d. Earmuffs to be worn only if I think its too noisy
e. Smoking only allowed in the gazebo area
f. Earmuffs to be worn at all times when machinery is operating
g. I can use any kind of pen in the factory
h. I can chew gum in the factory