The parenchymatous cells that lie between the xylem and phloem in plants are called conjunctive tissue. Conjunctive tissue is a type of ground tissue that fills the space between vascular bundles in plant stems. It is composed of parenchyma cells, which have thin cell walls and play a role in storage, photosynthesis, and providing mechanical support to the plant.

Hence, option 3 is the correct answer.
Posted by
Divya Prakash Singh