Final answer:
The drive that is reactive rather than proactive in the four-drive theory of motivation is the drive to defend.
Step-by-step explanation:
In the four-drive theory of motivation, the drive that is reactive rather than proactive is the drive to defend. This drive is also known as the self-preservation instinct. It is a reactive drive because it is triggered when individuals perceive a threat to their physical or psychological well-being.
For example, if someone tries to attack you, your drive to defend will be activated, and you will react by either fighting, fleeing, or freezing. This drive is not proactive because it does not involve setting goals or pursuing them proactively, but rather responding to threats and protecting oneself.