Which of these are offensive and defensive strategies for badminton?

An offensive strategy is for the server to hit the shuttlecock to the ground during badminton. A defensive strategy is to hit the shuttlecock into the net.
An offensive strategy is for the server to hit the shuttlecock directly at the opponent. A defensive strategy is to hit the shuttlecock hard enough to send it out of bounds.
An offensive strategy is for the server to hit the shuttlecock away from the opponent in badminton. A defensive strategy is to hit the opponent with the shuttlecock.
An offensive strategy is for the server to hit the shuttlecock to the opponent's weak side. A defensive strategy is to be in a central position to be able to strike the shuttlecock when the opponent hits it.