Question

diamonds are the hardest material in the world. these strong, brilliant stones have many different uses. people use them to make tough tools, such as saw blades, and they also use them to make sparkling jewelry. most diamond jewelry is made with white diamonds, but the stones come in a number of colors including pink, yellow, blue, and black. natural diamonds are mined out of the earth. new technology allows companies to produce diamonds in labs, too. which of these choices best summarizes the paragraph? a diamond is the strongest thing on the earth. they come in many different colors including yellow, blue, black, and pink. a diamond is used to make jewelry and comes in multiple colors. these stones are mined out of the earth, and they are produced in labs. diamonds, the hardest material available to humans, are used to make tools and jewelry. they can be mined or produced in labs. diamonds are stones that are very hard. these stones can be used to make saw blades and other tools. people also use diamonds to make jewelry.

Explanation:

The paragraph states diamonds are the hardest material, used for tools and jewelry, and can be mined or lab - produced. Option C includes all these key points. Option A only focuses on strength and color. Option B mainly emphasizes jewelry and production methods. Option D only mentions hardness and tool - making.

Answer:

C. Diamonds, the hardest material available to humans, are used to make tools and jewelry. They can be mined or produced in labs.