Which of the following actions can help a performer understand when to take action?

Amplifying the input is crucial for helping a performer understand when to take action because it enhances the information or stimuli that they receive. By increasing the intensity or clarity of cues, a performer can better recognize patterns and respond appropriately to their environment. This heightened awareness enables them to make more informed decisions about when to act, fostering responsiveness and situational awareness.

In contrast, the other options might hinder a performer's ability to discern when to act. For example, decreasing responsibility could lead to a lack of engagement or motivation, thereby reducing the performer's attention to necessary cues. Providing increased complexity may overwhelm the performer, making it harder for them to recognize clear signals or develop effective strategies. Removing task requirements might simplify the situation but could also eliminate vital components that guide action-taking, ultimately detracting from the performer's learning experience and responsiveness.