Answer: the correct answer is B.-The use of technical language demonstrates the author's solid knowledge of the topic.
Explanation: The article is not written just for engineers since it informs us of a new generation of batteries that can be useful for everyone. The language is not a scientific report because normal people can understand it. Not only NASA scientists can write this kind of articles since it is a down to earth article.
The third one:
“I can’t wait to be old enough to vote,” said Felipe,
Answer:
The action of moving back and forth quickly and steadily.
