Given the patch:
111021-01 .zip
Which command should you use first in a series of steps to install the patch?

A.
patchadd 111021-01

B.
unzip 111021-01.zip

C.
zip U 111021-01.zip

D.
uncompress 111021-01.zip

Explanation:

As the patch is compressed in the zip format the unzip command must first be used to unzip the file. Once unzipped use the patchadd command.