You are presented with the quiz "Where in the plant does growth in width or girth originate?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "secondary meristem is located within and around the vascular tissues" and "growth in girth is caused by other meristems, called secondary meristems". 

So, what's the best answer to the question?


 

       vascular tissue    