A customer asks a project manager if a small change can be made during the delivery phase. The project manager does not agree to the change.
Which of the following is the MOST likely reason?
A. Established communication plan
B. Scope
creep
C. Resource constraints
D. Iterative approach
References: Kim Heldman, CompTIA Project+ Study Guide, 2nd Edition, Sybex, Indianapolis, 2017, p. 133