The Following Question Is Based on This Cross Section of a Monocot

Multiple Choice

The following question is based on this cross section of a monocot stem. Which of the following is NOT a pattern of vascular bundles evident in this stem?

A) smaller vascular bundles toward the outside, larger bundles toward the center
B) xylem toward the outside of each bundle, phloem toward the center
C) vascular bundles more densely arranged toward the outside, less dense towards the center
D) vascular bundles arranged in concentric rings