00:01
This question is asking about the purpose of the last sentence in the first paragraph.
00:15
So we got to go to the first paragraph and see what it's about, and it'll give us the purpose of that last sentence.
00:20
So that first paragraph, if we kind of skim through it really quick, it's talking about ethanol remains considerably more expensive.
00:27
We're talking about money, right? then gasoline researchers are always looking for new ways to trim the costs, right? and then the last sentence says researchers have a new lead on a microbe that can use an abundant of nitrogen gas.
00:46
As a fertilizer, it needs to bruise ethanol from plants.
00:49
Okay, so the problem is it's expensive, right? things are expensive, and a solution is that a microbe can solve our cost problem.
01:03
So i need to go to my answer choices and see if any of them are in line with what we just read.
01:10
So answer choice a says it assesses the recent commercial accomplishments.
01:16
That's not the function of the last paragraph.
01:19
It's just saying we have a solution to save us some money, so we're going to eliminate a.
01:24
Answer choice b says to explain why one fuel is more expensive than the other...