Babool belongs to Tropical Thorn Forests, having tropical vegetation
Most Laurel forest species are evergreen, and occur in tropical, subtropical, and mild temperate regions, meaning it belongs to tropical vegetation
Sabai grass (Eulaliapsis binata ), a perennial plant, belonging to the family Poaceae, is grown in many asian countries like China, India, Pakistan, Nepal, Bhutan, Mayanmar, Thailand, Malaysia and Phillipines, all having tropical vegetation.
Hence, all the options are incorrect. None of these should be the answer.