The children were entrusted _______ the care of their uncle

for

with

none of these

The children were entrusted with the care of their uncle

بچوں کی دیکھ بھال ان کے چچا کے سپرد تھی۔

"with" is a preposition used to indicate someone's possessing about something

"with" is best to keep the meaning of the original sentence