Which of the following is not true of content marketing?

a$.$

The philosophy of content marketing emphasizes that brands should publish high$-$value content that pulls the audience in$.$

b$.$

Content may be published in owned, paid, or social media channels.

c$.$

Social media should be used to activate the content and drive audience engagement, conversation, and amplification through sharing.

d$.$

Brands may only use original content when publishing in social media channels.

e$.$

None of these.