Concept:Savanna is a tropical vegetation zone of tall grasses with widely spaced trees and shrubs.
Explanation:Savanna trees have deep roots, not shallow roots, so they can reach water in the dry season.
They are mostly deciduous trees, which shed leaves during the dry season, not trees that grow throughout the year.
The vegetation is open, not dense like a forest.
However, savanna often contains an open shrub layer made up of low woody plants.
This shrub layer is called scrub, making scrub the characteristic associated with savanna vegetation.
Answer:C. Scrub