Choose the correct answer:

Tea is a ___________ shrub.

Tea is an important cash crop that is grown both in the tropical and the sub-tropical regions. It is a perennial shrub whose leaves are used for the production of tea dust and tea. A hot, humid and moist condition is required for the excellent growth of the crop. It requires a temperature of 21 ̊ and an average rainfall of 150 cm. Since the shrub requires a cooler, rainy and tropical climate for its growth, it is majorly cultivated in the hilly regions. It is extensively grown in the hilly regions of China, India and Sri Lanka.