Explanation:

- Option 1: Alkaline

- Soils near canal banks can often become alkaline. This is due to leaching of calcium and magnesium carbonates, especially in dry regions where evaporation exceeds precipitation.

- Correct Answer

- Option 2: Acidic

- Acidic soils are more common in regions with heavy rainfall. They are less likely to form near canal banks, especially in arid or semi-arid regions.

- Option 3: Neutral

- Neutral soils have a balanced pH but are less likely to form naturally near canal banks without specific conditions.

- Option 4: Well drained

- Soils near canals can sometimes be well-drained, but this is more about water movement than pH. Drainage doesn't directly indicate pH levels like alkaline, acidic, or neutral.