Antonym of HAMPER

Answer: Option D

Hamper : hinder or impede the movement or progress of.
Open ; allowing access, passage, or a view through an empty space; not closed or blocked.
Release : allow or enable to escape from confinement; set free.
Hold : grasp, carry, or support with one's arms or hands.
Hasten : be quick to do something.

Antonym of Hamper is Hasten