i want to say that the answer is b.
i'm assuming you're asking for the elevator's final velocity.
consider the following equation:
vf = vi + aδt
vf is the final velocity.
vi is the initial velocity.
a is the acceleration.
δt is the amount of elapsed time.
vi = 12.60m/s
a = -3.60m/s²
δt = 2.97s
substitute the terms in the equation with the given values and solve for vf:
vf = 12.60 - 3.60×2.97vf = 1.91m/s