<span>a device or instrument designed to detect the presence of a particular object or substance and to emit a signal in response.</span>
Answer:It is told I’m a fragmented way~apex
Explanation:
The answer is the last choice, or D.
When you summarize, you're supposed to gather the most important points and rewrite them in a shorter and more simplified fashion. The first three choices include mostly everything you should do when writing a summary. Usually when you summarize, it's for a concluding paragraph, so writing an introductory paragraph wouldn't be it.
Actually the real answer is A to explain the significance of the topic fro the United States.
