Select the most appropriate meaning of the underlined word in a sentence.

The good weather has been a boon for many businesses located near the beach.

beneficial

The most appropriate meaning of the underlined word "boon" in the given sentence is beneficial.

A boon is something that is very helpful or beneficial. It is often used to describe something that brings good fortune or luck.

In the given sentence, the speaker is saying that the good weather has been beneficial for many businesses located near the beach. This means that the good weather has helped these businesses to make more money and to be more successful.

The other options are incorrect:

• Luck: Luck is not the same as a boon. Luck is something that happens by chance, while a boon is something that is intentionally given or done.
• Signal: A signal is a sign or indication of something. It is not the same as a boon.
• Fortune: Fortune is wealth or good luck. It is not the same as a boon.