Answer:
C, A, B
Explanation:
The first sentence should be C because not much vocabulary is used.
The second sentence should be A because proper vocabulary is used.
The second sentence should be B because vocabulary is overused.
Answer:
Advertising
Engagement
Introducing a new product
Explanation:
The post on the forum is introducing the new product, explaining it's use and benefits and also taking reaction from the forum members.
To understand the pain, fear and maybe bewilderment