Why Can Non-Native Plantings on Dunes Be Counterproductive in Protecting

Why can non-native plantings on dunes be counterproductive in protecting beaches?

A) Non-native plants rarely survive in beach environments.
B) Non-native plants can require artificial watering, leading to a rise in the water table and gully formation.
C) Non-native plants can block the wind from moving the sand to and from the dunes.
D) Non-native plants can overtake the dunes, covering most of the sand, and require frequent cut-back.
E) Non-native plantings can change the soil acidity, making the sand more likely to blow away.