Reason (R) : Because of specialization and investment in knowledge capital.
A. (A. is true, but (R) is false.
B. (R) is true, but (A) is false.
C. Both (A) and (R) are correct, but (R) is not the correct explanation of (A).
D. Both (A) and (R) are correct and (R) is the correct explanation of (A).
Answer:D
Reason (R) : Because of specialization and investment in knowledge capital.
A. (A. is true, but (R) is false. B. (R) is true, but (A) is false. C. Both (A) and (R) are correct, but (R) is not the correct explanation of (A). D. Both (A) and (R) are correct and (R) is the correct explanation of (A).