Answer:
Promotion component of the marketing mix.
Explanation:
The marketing mix refers to the techniques that a company uses to promote its brand or product in the market. Its involves Price, Product, Promotion and Place. Mrs Clinton uses an aspect of promotion for election campaign.
In Maglev, superconducting magnets suspend a train car above a U-shaped concrete guideway. Like ordinary magnets, these magnets repel one another when matching poles face each other. ... Here, both magnetic attraction and repulsion are used to move the train car along the guideway
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