Which of the following sentences is grammatically correct?
A.
The handle was lose and could of fallen off at any moment..
B.
The handle was loose and could of fallen off at any moment.
C.
The handle was lose and could have fallen off at any moment.
D.
The handle was loose and could have fallen off at any moment.
The grammatically correct sentence is:
D. The handle was loose and could have fallen off at any moment.