Select the most appropriate meaning of the given idiom.

A long shot

Little chance of success

The most appropriate meaning of the idiom "a long shot" is (4) Little chance of success.

The idiom "a long shot" means something that is unlikely to happen or succeed. It is often used to describe a risky or ambitious undertaking.

The other options do not fit the meaning of the idiom.

• A correct prediction is something that is predicted correctly.
• A perfect aim is an aim that is accurate and precise.
• Very profitable means something that makes a lot of money.