Aworkplace is where people
a. do work
b. find new jobs
c. go when they are unemployed
d. read advertisements for job openings

The answer is letter A.

A workplace is an area where a person performs tasks. This could be in a formal or an informal setting. Formal setting work places usually have an office ambiance or a corporate type of work environment where people engage mostly in a formal manner when it comes with their dealings. Informal work places usually have a laid back ambiance or a free-spirit type of work environment where people usually perform tasks at their own pace (e.g. home-based or online work).

Hoover—he was blamed for the depression.