If You Were Able to Walk into an Opening Cut

Multiple Choice

If you were able to walk into an opening cut into the center of a large redwood tree, when you exit from the middle of the trunk (stem) outward, you would cross, in order,

A) the annual rings, new xylem, vascular cambium, phloem, and bark.
B) the secondary xylem, cork cambium, phloem, and periderm.
C) the vascular cambium, oldest xylem, and newest xylem.
D) the secondary xylem, secondary phloem, and vascular cambium.
E) the summer wood, bark, and phloem.