Explanation:

- Horticulture plays a significant role in India's agriculture. It covers a wide variety of crops like fruits, vegetables, flowers, and spices.

- Option 1: Two-third, 5

- Suggests horticulture contributes two-thirds of the agricultural output and 5% to GDP.

- This might seem high considering the diversity of agricultural activities in India.

- Option 2: One-third, 6

- Posits that one-third of agricultural output is from horticulture and it contributes 6% to GDP.

- This is a realistic estimate of horticulture's contribution to agricultural output and GDP.

- Option 3: One-fourth, 8

- Indicates horticulture accounts for a quarter of agricultural output and yields 8% of GDP.

- Often seen as an overestimate given current statistics.

- Option 4: None of these

- Implies none of the provided figures accurately describe horticulture's contribution.

The correct answer is Option 2: One-third, 6 .