Given below are two statements, one is labelled asAssertion (A) :and the other as Reason (R).Assertion (A):Chile is the leading producer of copper in the world.Reason (R):Andes Region of North Chile is enriched with the largest deposites of Porphyry copper.Select the correct answer from the code given below:

1. A

   (A) is false but (R) is true

   (a) claims that Assertion (A) is false while Reason (R) is true. This option is incorrect because Chile is indeed the leading global producer of copper and the reason provided is also factually correct.

2. B

   (A) is true but (R) is false

   (b) claims that Assertion (A) is true while Reason (R) is false. This option fails because the geological presence of porphyry copper in North Chile is well-established and supports the statement.

3. C

   Both (A) and (R) are true but (R) is not the correct explanation of (A)

   (c) claims that both statements are true but (R) is not the correct explanation for (A). This is incorrect because the massive porphyry copper deposits in the Andes region of northern Chile directly explain why the country is the world's leading producer.

4. D

   Both (A) and (R) are true and (R) is the correct explanation of (A)

   (d) states that both (A) and (R) are true and (R) is the correct explanation of (A). Chile holds the top rank in global copper production, and this preeminence is fundamentally driven by the exceptionally rich porphyry copper deposits found within the northern Andes region of the country, making this comprehensive statement the key.

Summary. Official key is (d) Both (A) and (R) are true and (R) is the correct explanation of (A). Chile is globally recognized as the primary producer of copper due to its rich mineral endowment. The northern Andes region of the country contains extensive deposits of porphyry copper. These geological formations directly account for the high output volumes. Therefore, both the assertion and the reason are correct, with the reason accurately explaining the assertion.