B.
Not A. because it isn't only for solving simple problems.
Not C. because it CAN work well with personal or school problems.
Not D. because you can't solve a problem before their is a problem.
I hope this helped.
Question: What technique does the advertisement use to achieve its purpose?
Answer: B. It presents a type of car as a new and exciting purchase.
Hope this helps, have a great day. c;
I am not 100% on this but crest is usually associated with a wave so if there is an answer for a wave I would go with that
