A water-logged land is found suitable for cultivation due to A. Ease of tillage for preparation of the field for optimum condition of germination B. Absence of aeration of soil from root zone of the plant C. Regular supply of water to plants from the water table by capillary action D. None of these

The correct answer is D. None of these.

Waterlogged land is not suitable for cultivation because it does not have enough oxygen for plant roots to grow. When the soil is saturated with water, the air spaces between the soil particles are filled with water and the roots cannot get the oxygen they need. This can lead to root rot and plant death.

Option A is incorrect because waterlogged land is difficult to till. The soil is too wet and sticky, and it is difficult to break up the clods. This makes it difficult to prepare the soil for planting.

Option B is incorrect because waterlogged land does not have enough oxygen for plant roots. The air spaces between the soil particles are filled with water, and the roots cannot get the oxygen they need. This can lead to root rot and plant death.

Option C is incorrect because waterlogged land does not have a regular supply of water to plants. The water table is too high, and the water is not available to the plants. This can lead to drought stress and plant death.