Where Are the Youngest Wood and the Youngest Bark in a Tree

Multiple Choice

Where are the youngest wood and the youngest bark in a tree trunk?

A) Youngest wood is in the center of a tree; youngest bark is the outside of the bark.
B) Youngest wood is in the center of a tree; youngest bark is the inner part, next to the vascular cambium.
C) Youngest wood is toward the outside, near the vascular cambium; youngest bark is the outside of the bark.
D) Youngest wood is toward the outside, near the vascular cambium; youngest bark is the inner part, next to the vascular cambium.