Answer:
C. Genetic Exchange
A monocot<span> seed has an embryo with a single cotyledon, and a </span>dicot<span> seed has an embryo with two cotyledons. </span>Monocots<span> have stem vascular systems with their bundles scattered, and </span>dicots<span> have their stem vascular systems with their bundles in a ring.</span>
This would be the nucleiod region.