Which sentence uses the word efficient correctly? Going to the store without a list was efficient and required a second trip to buy all we needed.

She left all the lights on in the house when she left for work in order to be energy efficient.

The scientist's interpretation of the research results was efficient and timely.

The papers all over the desk showed the efficient way in which the student worked.

It should be

The scientist's interpretation of the research results was efficient and timely.

This is what I meant XD

Explanation:

The scientist's interpretation of the research results was efficient and timely.

Explanation:

efficient means doing the same amount of work in less time or doing more work in the same time.

Going to a store a second time is not efficient.

Leaving lights on is not energy efficient.

Papers all over the desk (seems like me) is not efficient because you can't find things.

So it's the scientist one.

when reagan refers to freedom in this passage, he uses repetition as a rhetorical device. repetition is when the same words or phrases are repeated few times to make an idea stronger and more unforgettable. in this case, when he talks about freedom, he starts the sentence whit this word followed by a verb in present simple and after an advantage of being free.

explanation:

b is the answer