After receiving instruction on the use of a diaphragm for contraception, which statement by the client indicates that they have understood the teaching?

Once I am fitted for the diaphragm it will always be the correct size.

This contraceptive can be used during menstruation.

I need to leave the diaphragm in for six hours after the last act of intercourse.

I can leave the diaphragm in for a day or two.