The correct answer is: B. Tea is grown in Darjeeling.
Darjeeling is a region in West Bengal, India, that is known for its high-quality tea. The tea leaves are grown in the foothills of the Himalayas, and the climate and soil in this region are ideal for tea cultivation. The tea leaves are hand-picked and then processed in small factories. Darjeeling tea is known for its strong flavor and aroma.
Option A is incorrect because it states that Darjeeling grows tea. This is not accurate, as Darjeeling is a region, not a plant.
Option C is incorrect because it uses the imperative mood. The imperative mood is used to give commands or make requests. In this case, the sentence would be interpreted as a command to grow tea in Darjeeling.
Option D is incorrect because it uses the present progressive tense. The present progressive tense is used to describe actions that are happening at the moment of speaking. In this case, the sentence would be interpreted as describing the act of growing tea in Darjeeling.
In conclusion, the correct answer is: B. Tea is grown in Darjeeling.