They are both flexible. They are both stiff. They both make food for a plant. They both give support to a plant.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: What do the long vine of an ivy plant and the trunk of an oak tree have in common?
Possibilities:
- They are both flexible.
- They are both stiff.
- They both make food for a plant.
- They both give support to a plant.

They both give support to a plant.