Answer:
A
Step-by-step explanation:
a: yes! dead lifts and bench presses especially because you could get a lot of injuries from those lifts.
b: you do not need a spotter for butterflies lol
c: no not necessarily, it might be good if you had a spotter for overhead presses but it isn't 100% necessary i don't think.
d: no you don't need a spotter for that, you can do those workouts at home!
Hope this helps you out!