Explanation:

- AIM: Generally refers to a target, goal, or focus towards which one directs their efforts.

- Option 1: Courage: This is about bravery or the ability to face fear, not related to goals or targets.

- Option 2: Shot: While it can be related to aiming in a physical sense (shooting), it's more specific to taking action rather than the broader concept of aiming towards a goal.

- Option 3: Purpose: This means the reason for which something is done or created, aligning closely with a goal or aim.

- Option 4: Selection: Refers to choosing something from a set of options, not necessarily connected to having or working towards a goal.

The correct answer is:

- Option 3: Purpose