How can advertisers use Shopping ads to grow sales?

Questions: How can advertisers use Shopping ads to grow sales?

Answer:

• By taking advantage of Google customer reviews and offering merchant promotions
• By selecting a specific location on the search results page for their ads to appear
• By choosing color schemes that match their website’s appearance and style
• By targeting shoppers by college degrees, employment positions, and leadership roles

This question is from Google Shopping Certification test.