Select the most appropriate meaning of the given Idiom:-

" Making a clarion call  "

A vehement request to masses to do something

The most appropriate meaning of the idiom "making a clarion call" is a vehement request to masses to do something. The idiom comes from the idea of a clarion call being a loud, clear, and urgent sound. In a figurative sense, to say that someone is "making a clarion call" means that they are making a strong and passionate appeal to people to do something.

The other options are not as accurate descriptions of the meaning of the idiom. Shouting loudly is not the same as making a vehement request. Giving speech in huge gathering is not typically associated with the idiom "making a clarion call." To disillusion means to disappoint or disabuse someone of their illusions, which is not the same as making a vehement request.