The salt affected soil having L15ESP would be:

Correct option is B

✅ (b) Saline soil: • Saline soils have high soluble salt content, but Exchangeable Sodium Percentage (ESP) is low (<15). • These soils show white crust on the surface and have an EC >4 dS/m, pH < 8.5. • Hence, L15ESP = "Less than 15 ESP" implies saline (not sodic) soils.
❌ (a) Alkali soil: • Also called sodic soil, ESP > 15 and pH > 8.5.
❌ (c) Saline-alkali soil: • Contains both high salts and high ESP. Not applicable here.
❌ (d) None of these: • Incorrect, as saline soil fits the L15ESP criteria.