Question

ethanol
by clever clog
we dont have much time left to save our planet. im going to tell you
about a fuel that we can step in the right direction. ethanol is the best
option for a clean, renewable fuel of the future. ethanol is an alcohol-
based alternative fuel made by fermenting and distilling crops like corn,
barley, or wheat. ethanol can even be blended with gasoline to improve
emissions quality. if you dont choose ethanol then you might as well
choose nothing at all. ethanol is a clean fuel that can help protect the
environment!
ethanol_summary
ethanol is an alcohol - based alternative fuel made by fermenting
and distilling crops like corn, barley, or wheat
keep summarizing. which detail should be included?
im going to tell you about a way that we can step in the right direction.
not only can it be blended with gasoline, but it can also improve emissions quality.
if you dont choose ethanol then you might as well choose nothing at all.

Explanation:

The question asks which detail should be included to continue summarizing the text about ethanol. The text states ethanol can be blended with gasoline to improve emissions quality, which is a key factual detail relevant to summarizing ethanol's benefits. The other options are either an introductory statement or an emotional appeal, not core factual details for a summary.

Answer:

Not only can it be blended with gasoline, but it can also improve emissions quality.