The maximum water holding capacity occurs at pF value of:

Correct option is A

· pF value is a logarithmic scale indicating the soil water tension.
· pF 1.0 corresponds to:
· Water saturation point, i.e., all pores are filled with water.
· Maximum water holding capacity of the soil.
· Other pF values:
· pF 2.5–3.0: Field capacity
· pF 4.2: Permanent wilting point
· pF >6: Hygroscopic water (unavailable to plants)