Select from options: Continue writing the next sentence.

How to install vertical blinds
Screw holes into the valance.
The valance is l-shaped so the top surface can be mounted inside the upper frame and the front of the valance will hide the headrail.
Place the valance on a flat surface with the front of the valance in an upright position.

Choose your answer from:
(1). Measure 3 inches (7.6 cm) from each end and position each bracket so the top edge is against the upright valance. Use a pencil to mark the 2 screw holes in each bracket.
(2). Place a piece of drywall over the upright portion of the valance. Place the free end of the drywall against the top edge of the valance.
(3). On two 8-foot (2.1 m) valances, you'll need an l-shaped seating thread and a large bolt, fixed on each side of the frame. Clevis should be able to fit a small bolt into both bolts.
(4). Align the two horizontal holes with a screw, so they line up with each other. Using your hole puncher or bobby pin, make your hole about halfway up the trim.
Answer:
(1).