Which of the following is most exemplifies an example of a hidden task

Question

the human resource manager stays up to date on laws regarding workplace safety
the office manager proofreads marketing materials because she has excellent editing skills
a graphic designer is trained to use a new type of design software
the office manager maintains an inventor of office supplies because he knows employees need them

Answer 1

The office manager maintains an inventory of office supplies because he knows employees need them is the most exemplifies an example of a hidden task.