A low bar squat is a squat in which the bar is placed low on the upper back in the back squat position. It should be resting on the posterior deltoid, not the top of the shoulders. The feet are also shoulder-width apart and turned slightly out for this move.
Performing Hip Thrusts With A Barbell

Begin by putting padding around your barbell to prevent it from digging into your hips when you thrust.
Place your upper back on your bench with your barbell across your hips.
Keep your feet planted firmly on the ground, close to your glutes.
Drive your hips skyward, engaging your core and abs.
Keep the movement in the lower body as much as possible (don’t “rock” your upper body to complete the move).
Hold for a count then lower to your starting position.
https://youtu.be/DjxQrgLsty4?t=23
YouTube
Al Kavadlo
Pistol Squats

https://www.youtube.com/watch?v=9oXBJ2jFuqo
YouTube
James Cerbie
Barbell Hip Bridge

https://www.youtube.com/watch?v=tFob15sLEZ0
YouTube
The Vitamin Shoppe
The Right Way to Do a Cable Kickback with Courtney King

https://www.youtube.com/watch?v=CBaDRYtLHtM
YouTube
getreddynow
Core Series -- Quadruped Hip Extension

That's A
@Hydrattler
When an exercise reads 3x10, this means 3 sets of 10 repetitions. So 2-3x8-12 would mean two or three sets of eight to twelve repetitions. 8-12 is a rep-range, meaning; if you can very easily do 12, increase the weight.
https://www.youtube.com/watch?v=m4ytaCJZpl0
YouTube
CrossFit®
The Front Squat

Performing Hip Thrusts With A Barbell

Begin by putting padding around your barbell to prevent it from digging into your hips when you thrust.
Place your upper back on your bench with your barbell across your hips.
Keep your feet planted firmly on the ground, close to your glutes.
Drive your hips skyward, engaging your core and abs.
Keep the movement in the lower body as much as possible (don’t “rock” your upper body to complete the move).
Hold for a count then lower to your starting position.
https://www.youtube.com/watch?v=VUiFlZ2FsKA&t=12s
YouTube
ScottHermanFitness
How To: Sissy Squat

https://www.youtube.com/watch?v=2b97cvyH9sE
YouTube
ScottHermanFitness
How To: Hip Abduction (Cybex)

https://www.youtube.com/watch?v=CBaDRYtLHtM
YouTube
getreddynow
Core Series -- Quadruped Hip Extension

That's B
Not too bad. Some of the  positions look tough as nails though