Discussion

Explanation:

Option 1 is not the correct answer option as we do not possess enough data to determine whether the efficacy of the guru-shishya system is almost unique.
Option 2 is irrelevant as the earning capacity of North Indian music has not been touched upon at all in the passage.
Option 4 is incorrect because we do not have enough data from the passage to determine whether ‘the ability of an illiterate person to narrate grand and intricate musical compositions’ is almost unique or not.
The passage mentions, “And the oral transmission of North Indian classical music remains, almost uniquely, a testament to the fact that the human brain can absorb, remember and reproduce structures of great complexity and sophistication without the help of the hieroglyph or written mark or a system of notation.”
Hence, the correct answer is option 3.

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