Medical hygiene practices includes :
\[
\begin{aligned}
A.&\ \text{Isolation or quarantine}
B.&\ \text{Policies of hygiene and Nutrition}
C.&\ \text{Sterilization of instruments}
D.&\ \text{Use of protective clothing}
E.&\ \text{Follow GHI rules and regulations}
\end{aligned}
\]
Choose the most appropriate answer from the options given below :