The effectiveness of a speech tags is more often related to how you used it rather than what type of speech tag it is
It is used to alert the readers about a sentence that is directly spoken
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The correct answer would be 1,2,3,6. Interacting properly with the multimedia content is important in order to use to full potential otherwise it can distract your audience and take the focus of your topic. Standing up straight and using appropriate is important in order to look confident and not to antagonize the audience by being too loud or too quiet. Also be mindful of the pace, you don't want to have to rush it.
The answer is A. Having been elected by a unanimous vote, the committee congratulated the nominee.
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