Final answer:
The statement that is wrong about stem vascular bundles is option D: Phloem inner side and xylem outer side.
Step-by-step explanation:
The wrong statement about stem vascular bundles is option D. Phloem inner side and xylem outer side. In dicot stems, the xylem tissue is located toward the interior of the vascular bundle, while the phloem is located toward the exterior. The phloem is always on the inner side and the xylem is always on the outer side of the vascular bundle.