Answer the following question given this paragraph: 

Most plants continue to grow as long as they live. They grow through a combination of cell growth and cell division (mitosis). The key to plant growth is meristem, a type of plant tissue consisting of undifferentiated cells that can continue to divide and differentiate. Meristem allows plant stems and roots to grow longer (primary growth) and wider (secondary growth).


Q: What is a type of plant tissue consisting of undifferentiated cells that can continue to divide and differentiate?

 Choices:

- epidermis

- cambium

- ganglion

- meristem

A:
meristem
