Plz help experrts plllll fasstttt

Dear student,
Please find below the answer:

The correct option is (1) i.e. dicot stem and monocot root.

Pith is composed of spongy parenchyma cells. It helps in the transport of nutrients throughout the plants. It is generally present in dicot stem and monocot root. In dicot root and monocot stem, the pith is small and inconspicuous.

Structure of monocot root with a large and well-developed pith:


Hope this clears your doubt.
Regards.