Which active-passive pair is correctly formed?

The Passive Imperfect

• Active: يَضْرِبُ; passive: يَضْرَبُ
• Active: يَقْتُلُ; passive: قُتِلَ
• Active: يَنْصُرُ; passive: يَنْصَرُ
• Active: يَضْرِبُ; passive: يُضْرَبُ