(__), also known as guerrilla advertising, is when a product or brand is (__) in entertainment and media.

Also known as ambient media, guerrilla advertising (or marketing) has become prominent over the last

A、days
B、month
C、hours
D、years

Covert advertising refers to a product or brand ___________ a movie or TV series, etc.

When a firm uses an established brand to introduce a new product, it is called a brand ________.

A、harmonization
B、valuation
C、positioning
D、extension

When advertising a product, you ______ mention the price.