Question

Read this sentence from Neil deGrasse Tyson's preface to his book The Pluto Files:

Answer 1

Answer:

D. It informs the reader about Pluto's planetary status

Explanation:

Answer 2

Answer:

D. It informs the reader about Pluto's planetary status

Explanation:

There are four main types of writing: descriptive, persuasive, narrative and expository.

The main purpose of expository (sometimes named informative) writing is, as the name might suggest, to explain, define something or inform the readers on a certain topic providing an explanation.

This particular sentence informs us about "Pluto's rise and fall from planethood" which means that it is no longer considered a planet.

In that way, it explains us Pluto's planetary status, which makes this an example of expository writing.