What is not a function of modified leaves attracting pollina

What is not a function of modified leaves? attracting pollinating insects with their bright colors trapping and digesting insects for an additional nutrient source storing nutrients and water absorbing oxygen for photosynthesis wrapping around structures for support Save

Solution

The examples are
1. Attracting pollinating insects : poinsettia
2. Trapping and digesting insects : Drosera
3. Stroing nutrients and water : Xerophytes
4. No example found as I came to know
5. Wrapping around structures for support : Smilax

The answer is 4) Absrobing oxygen for photosynthesis