This is a test of commonsense with single/multi-choices. Complete the next sentence:

She later demonstrates how to remove the saddle off. She puts the new one on and then uses tools to tighten it back on. she

Available choices:
i. sits down on her horse and pulls out tools to apply the saddle to the back of the horse..
ii. speaks to another woman while marking her cheeks while showing off..
iii. puts the new one onto the horse's hind legs and allows the rear legs to dangle over the pommel..
iv. uses a screwdriver to tighten the screws and adjust the level..
The answer is:
iv.