Multi-select problem: How does the next paragraph end?

How to install a cartridge box sling (reenacting )
Lay the cartridge box on its back.
Place the sling above it, with the breast-plate on the right side of the sling.
Flip the sling and cartridge box over.

Choices: (a). Now this is where you will place your camera head. Place your camera head with the eye-plate facing upwards. (b). Make sure that you flip both in the same direction. With the rough side of the sling facing up and away from the overturned cartridge box, feed the right end of the sling though the right sling loop. (c). Gently slide the cartridge box back onto its front side. Clear the plate with a tool (a shetland broom). (d). In this step, place a single piece of jumper wire underneath the shield. Now slide the wire under the shield until the shield is nestled into the sling's rim.
(b).