Answer:
Mark realizes that his designer doesn't understand the concept of:
d) resolution independence
Step-by-step explanation:
Resolution independence is the concept assigned to the phenomenon in which elements in a computer are rendered at sizes different from the pixel grid generating a flexible and modifiable design that can be resized in different scales respecting resolution without degrading it. It is independent of the resolution and it is not affected, so it is one of the major achievements of modern computer design because this was no available years ago and designers had to draw over and over again.