Which of the following is used to describe the practice of
adding resources to shorten selected activity time on the critical
path of a project?

(b) The requirement is to identify the term used to describe
the practice of adding resources to shorten selected activity
time on the critical path of a project. Answer (b) is correct because
this describes project crashing. Answers (a), (c), and (d)
are incorrect because they are not terms used to describe this
process.