DIRECTION: The foil owing quest ion consist of two statements Statement I and Statement II. You are to examine these two, statements carefully and select the answers to these questions using the code given below [CDS 2017-II] Statement I: Ozone is a tri-atomic molecule of oxygen. Statement II: Ozone is concentrated mainly in stratosphere.

• A.  Both the statements are individually true and Statement II is the coned explanation of Statement I   
• B.  Both the statements are individually true, but Statement II is not the correct explanation of Statement II
• C.  Statement I is true, but Statement II is false
• D.  Statement I is false, but Statement II is true