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Explanation:

This series contains three series in itself.

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​​​Series 1 (T1, T4, T7, T10): –1, 0, 1, 2 (AP with a common difference of +1)

Series 2 (T2, T5, T8, T11): 0, 2, 6, 12 (Differences between two terms increase by 2)

Series 3 (T3, T6, T9, T12): 1, 4, 9, 16 (Squares of consecutive numbers)

The next three numbers will thus be 3, 20 and 25.

Hence, option (c).

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