Option 1: This option states that both statements are individually true and Statement II is the correct explanation of Statement I. This means that the variability of annual rainfall in western Rajasthan is high, and the average annual rainfall is extremely low, and the explanation for the high variability is the low average rainfall. However, this option is incorrect because there is no information in the statements that directly connects the variability of rainfall to the average rainfall. The two statements provide separate facts but do not explain the relationship between them.

Option 2: This option states that both statements are individually true but Statement II is not the correct explanation of Statement I. This is the correct answer because it acknowledges the truth of both statements but does not establish a cause-and-effect relationship between them. Statement I indicates that there is high variability in annual rainfall in western Rajasthan, while Statement II states that the average annual rainfall is extremely low. While the two statements may be related, there is no clear explanation or connection between them provided in the statements.

Option 3: This option states that Statement I is true but Statement II is false. However, this option is incorrect because both statements are true. Statement I indicates that the variability of annual rainfall is high in western Rajasthan, which is supported by the fact that this region experiences