Which statement about First View and Promoted Trend is true?

First View and Promoted Trend may not be purchased together.
It is not recommended to use First View and Promoted Trend together.
Combining First View and Promoted Trend will reach people either in the Home timeline or the Explore tab, but not both.
When paired together, First View and Promoted Trend drive higher key ad metrics.

The correct answer is:

When paired together, First View and Promoted Trend drive higher key ad metrics.