In early spring, many wildflowers begin to grow, produce flowers, and release seeds. The levels of the wild flowers make food before the leaves of the trees in the area begin to develop the early growth pattern of the wildflowers most likely result in

Decrease the competition for sunlight between the trees and the wildflowers

Explanation:

In early spring, many wildflowers begin to grow, produce flowers, and release seeds. The levels of the wild flowers make food before the leaves of the trees in the area begin to develop the early growth pattern of the wildflowers most likely result in  decrease the competition for sunlight between the trees and the wildflowers

"a.) well–developed vascular system."