Select the most appropriate meaning of the given idiom.

Strike when the iron is hot

grab a favourable opportunity promptly

The most appropriate meaning of the idiom "strike when the iron is hot" is grab a favourable opportunity promptly. It is used to encourage someone to take action when the opportunity is right, and not to wait too long. The idiom comes from the idea that if you wait too long, the opportunity may be gone.

The other options are not correct.

• Sort out differences promptly: This is not the same as strike when the iron is hot.
• Torture someone with a hot iron: This is not the same as strike when the iron is hot.
• Wait patiently for the results: This is the opposite of strike when the iron is hot.