Step 1: Notice the two conditions in the flow chart.
The chart points to heavy rainfall combined with high temperature and intense leaching of the soil. Step 2: Think about what that kind of leaching does.
When rain keeps washing away silica and soluble minerals from the topsoil, what remains behind is mostly iron and aluminium oxide, which gives the soil a reddish look. This process is the classic formation story of laterite soil. Step 3: Confirm with where this soil is found.
Laterite soil is common in high rainfall belts like the Western Ghats, Kerala, Karnataka, Tamil Nadu, Odisha and Assam, and supports plantation crops like tea, coffee and rubber, which fits the picture given.
So the missing soil in the chart is laterite soil, option (B).
