Which of the following is NOr a confined space that requices a permit?

a$.$ A space that contains a hazardous or potentally hazardous atmasphere.

b$.$ A space that contains a material that can mother someone who enters.

c$.$ A space that contains a material which can engult someone who enters.

d$.$ A space that is designed for continuour employee occupancy

e$.$ A space that contains defielency oxysen levels.