How should companies promote products and services on social media?

A) Through well-developed sales pitches
B) As summary lectures on product usage
C) Vaguely and passively
D) Indirectly,via conversational exchanges
E) Directly,via unidirectional messaging

Indirect promotion through conversational exchanges is the best way to promote products and services on social media as it allows companies to interact with their audience, build relationships, and establish trust. This type of promotion is less aggressive and more authentic, leading to higher engagement and better long-term results.