Which of the Following Is a Characteristic of a Monocot

Which of the following is a characteristic of a monocot rather than a eudicot?

A) The root phloem is between the arms of the xylem.
B) The vascular bundles are in a distinct ring in the stem.
C) The flower parts are in threes or multiples of three.
D) The leaf veins form a net pattern.
E) The seed has two cotyledons.