You are presented with the question "Where does lengthening and widening occur in plant roots?" and the following answer choices: 
- meristems
 - Epidermis
 - cracking
 - allow growth
 - buds
 - stamens
 - epidermal
 - fruits

Now knowing that roots have primary and secondary meristems for growth in length and width and growth occurs in meristems, choose the best answer.


 

 meristems        