Cells in multicellular organisms undergo differentiation to:

In multicellular organisms, cells undergo differentiation to support various functions and roles, which is crucial for the organism's overall health and survival. Differentiation is the process by which unspecialized cells become specialized in structure and function, allowing them to fulfill specific roles in the body. For instance, some cells might become muscle cells, enabling movement, while others may develop into nerve cells to transmit signals.

This specialization is essential because it allows for the complexity and efficiency of multicellular life. Each type of differentiated cell contributes to the organism's functionality, enabling systems such as the nervous system, circulatory system, and digestive system to operate effectively. This collaborative effort among diverse cell types is what makes multicellular organisms successful, allowing them to perform tasks that single-celled organisms cannot.

The other options do not reflect the nature of cellular differentiation accurately. Becoming identical to each other is counterproductive to the diversity needed in multicellular organisms. Simply replicating without specialization would lead to a lack of functional diversity and inefficiency in bodily processes. Lastly, remaining undifferentiated throughout life would mean that cells could not take on the specialized functions necessary for the organism's development and sustainability. Thus, the correct understanding of cellular differentiation is that it enables diverse functions and roles