Since anger can be controlled, it follows that anger is a choice. Anger is a learned response to a trigger in our environment. That statement is inaccurate. No one is ever made to be angry. No one is forced against their will to lose their temper.
Anger is a learned response to a provoking situation.
Consider the following diagram. Between every provoking situation and outcome lies the freedom to select the actions we deem appropriate. Habit may make our responses seem almost involuntary, but they aren't. While certain provoking situations may creep up on us so that we respond with a knee-jerk reaction, once the connection between the provoking situation and our response is in our consciousness, we can begin to take more control over our actions. Learn what provokes your anger.