is among the most visible, most expensive and most controversial of the elements and techniques of marketing communications.

The correct answer is letter "D": Advertising.

Explanation:

Advertising is a group of strategies oriented to promote products and services within society. Though, it is not just about letting others know about the existence of something it also implies informing them of the reputation that is offered. Advertising could be controversial because of the many approaches companies use to try to get to their target population, sometimes too aggressive.

the most important factor in the

work process or industry is to retain the interest of the employee. and to

retain them, their salary or profit must be adjusted to the best value. unless

the employee does not do his job properly, employees must receive bonuses or

benefits to ensure them to stay in the company. it will actually make them stay

longer, make them feel important and reduce costs for hiring new employees.

explanation:

mark brainliest!