The correct answer is (d) Pears, precious and semi-precious stones.
Pears, precious and semi-precious stones were the major export item of Uttarakhand till December 2021 (during 2021-22) as per the Uttarakhand Economic Survey 2021-22. The state exported goods worth Rs 1,000 crore during the period, of which pears, precious and semi-precious stones accounted for Rs 300 crore. The other major export items were plastic and rubber, chemical products, and base metals.
Pears are a major fruit crop in Uttarakhand and are grown in the Kumaon and Garhwal regions. The state is also a major producer of precious and semi-precious stones, such as diamonds, rubies, and sapphires. These stones are mined in the Garhwal region and are exported to countries such as China, the United States, and the United Arab Emirates.
The export of pears, precious and semi-precious stones is a major source of revenue for the state government. The government is working to promote the export of these products and to attract more investment in the sector.
The other options are incorrect because they are not major export items of Uttarakhand. Plastic and rubber are manufactured in the state, but they are not exported in large quantities. Chemical products are also manufactured in the state, but they are mainly used in the domestic market. Base metals are not a major export item of Uttarakhand.