The DNC or RNC (Democratic National Convention or Republican National Convention) speaker's primary task is to defend the next best prospective presidential candidate for the House.
<u>Explanation</u>:
The speaker does so by giving a keynote speech on the prospective candidate outlining his/her virtues and proves his/her stance for the same. A DNC or RNC Speaker's job is to ensure that through their speech, they are able to make a political party's immediate candidature a suitable one. They are often tasked with the job of ensuring people getting moved and swayed towards the party's candidate resulting in their valuable vote of confidence.
The correct answer is notation or musical notation.
Musical notation is a way of having to write down music in a
way of allowing one to play it and that systems are used and associated by in
in order to use it in writing music.