Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to install ceiling drywall [title] Inspect the area for any obstructions, such as electrical wires, ductwork, or protruding pipes. [step] Install furring strips to the framing in order to create a flat, even surface for drywall installation around these obstacles. [title] Mark the wall studs to indicate the locations of the ceiling joists for reference during the installation process.

Ending1: [step] Be sure the drill marks are straight and made straight across and pointing to a stud for stud alignment and marking. [title] Apply drywall adhesive to the ceiling studs using a drywall mortar and a 16 " drywall saw. Ending2: [step] You'll also want to mark the placement of light fixtures and electrical boxes. [title] Build a t-brace, if necessary. Ending3: [title] Look for junction boxes or recessed ceiling fittings. [step] These are the pipes that close the bottom three or four feet of the ceiling. Ending4: [title] Drill hole holes into ceiling joists using a hole puncher. [step] Use a perforation file (arb) to ensure proper line.

Answer format: ending1/ending2/ending3/ending4