To effectively support your argument, one must understand your audience and the subject to form a sound opinion.
When giving an argument, remember that it is different from persuasion. You're there to persuade a specific audience but to prove your point with logic.
An argument is effective when you back it up with stats, figures, and examples. An argument based on mere personal opinion is not going to convince your audience.
make your argument appealing to the people by building trust. The best way to build trust is to cite some reputable sources.
Listen to your audience's point of view and then answer their objections calmly.
See a similar question about the argument here;
https://brainly.com/question/25465770
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