What is the area of the stratosphere with a high concentration of ozone? A.) exosphere

B.) ionosphere

C.) O ozone layer

C.) Ozone layer

Most ozone (about 90%) is found in the stratosphere, which begins about 10–16 kilometers (6–10 miles) above Earth's surface and extends up to about 50 kilo- meters (31 miles) altitude. The stratospheric region with the highest ozone concentration is commonly known as the “ozone layer” (see Figure Q1-2).

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890

the correct answer would be d. hope this !