Answer the following question given this paragraph: 

As shown in Figure below , the tip of a root is called the root cap . It consists of specialized cells that help regulate primary growth of the root at the tip. Above the root cap is primary meristem, where growth in length occurs.


Q: Where does growth in length occur, above the root cap?

 Choices:

- primary tuber

- vascular cambrium

- apical meristem

- primary meristem

A:
primary meristem
