Harold is planning to use high-quality, high-resolution photos for a Google Display campaignand intends to use responsive display ads.In which scenario is a Google best practice correctly applied?

● Harold writes short headlines with the same messaging but phrased in different ways.
● Harold appropriately adds trademark and copyright symbols to company names.
● Harold uses long headlines that summarize all of the points made in the short
headlines.
● Harold checks that all headlines and descriptions are distinct and can be used
interchangeably.