A. conceal
B. prevent
C. withdraw
D. concede
Exhibit : publicly display (a work of art or item of interest) in an art gallery or museum or at a trade fair.
Conceal : not allow to be seen; hide.
Prevent : keep (something) from happening.
Withdraw : remove or take away (something) from a particular place or position.
Concede : admit or agree that something is true after first denying or resisting it.
Antonym of Exhibit is Conceal