Formation of tropical forests needs mean annual temperature and mean annual precipitation as

1. 18-25°C and 150-400 cm

2. 5-15°C and 50- 100 cm

3. 30-50°C and 100- 150 cm

4. 5-15°C and 100- 200 cm

(a) Formation of that tropical forest need annual temperature 18-25°C and annual rainfall (precipitation) above 140 cm, usually between 150-400 cm and reach upto 1000 cm/year Tropical forest (tropical rain or evergreen forest mainly occurs in an equatorial or subequatorial region like Amazon, Central America, and Orinoco and Congo river basins of South America and Africa respectively
The other options are incorrect.