"Sterilization of culture room"
(I) Floor and walls are washed with detergent
(II) Used `5%` sodium chloride or `90%` ethanol for washing.
(III) The cabinet of laminar airflow is sterilized by clearing the work surface with `95%` ethanol.
(IV) Exposure of UV radiation for 15 minutes.

Options

A. II, III and IV only
B. I and IV only
C. I, II and IV only
D. I, III and IV only

Answer

A, D