Hello I may have a question but I don't know how to do it

The correct word to complete the sentence

And argument does not always have to be made in words. which of the following best describes the type of argument a piece of music makes

Read this excerpt from mohandas gandhi's "banaras hindu university speech." what is the speaker's purpose a. to persuade his audience to struggle for self-governance through peaceful means b. to urge wealthy indians to act instead of merely talk about poverty c. to inform the audience that the british colonial power is stealing indian resources d. to persuade his audience to renounce materialistic wealth and pursue spiritual wealth