In wheat, cross-pollination is

Answer: Option B

In wheat, cross-pollination is < 5%.
Wheat is a self-pollinating crop that produces seed when pollen from anthers fertilizes the receptive ovary in the same flower of a single-parent plant.
Wheat commonly is crossed by hand pollination or by approach crossing, so both methods are illustrated. Approach crossing can be used effectively to obtain crossed seeds with a minimum of labour in both the field and greenhouse. Thus, cross-pollination in wheat is < 5%.