Final answer:
C. Apply gypsum to the wall, then to the ceiling. When placing sheetrock over wood framing, the first step is to apply gypsum to the wall, and then to the ceiling.
Step-by-step explanation:
When placing sheetrock over wood framing, the correct sequence is to first apply gypsum to the wall, and then to the ceiling.
This sequence ensures that the sheetrock is properly aligned and secured to the framing. By starting with the wall, you can attach the sheetrock panels to the studs, using screws or nails. Then, you can move on to the ceiling, overlapping the wall sheetrock to create a seamless and secure connection.