Gas exchange intake of nutrients
disposal of wastes
stimulus response
reproduction

How do these functions compare between single-celled and multi-celled organisms?

A.
Single-celled organisms must perform all of these functions with one cell, while multi-celled organisms can have specialized cells for different functions.

B.
Single-celled organisms can perform all of these functions, while multi-celled organisms can perform only some of these functions.

C.
Single-celled organisms can perform only some of these functions, while multi-celled organisms can perform all of these functions.

D.
Neither single-celled organisms nor multi-celled organisms can perform all of these necessary functions.