___ in (chooses to participate) (4)
I believe the answer is:
opts
(Other definitions for opts that I've seen before include "Elects" , "Selects as an alternative" , "Makes choice from post" , "Makes a choice from a range" , "Settles" .)
I believe the answer is:
opts
(Other definitions for opts that I've seen before include "Elects" , "Selects as an alternative" , "Makes choice from post" , "Makes a choice from a range" , "Settles" .)