Which of the following statements correctly differentiates SDS-PAGE from native PAGE?

Native PAGE denatures proteins, while SDS-PAGE retains their native structure.

SDS-PAGE separates proteins based on mass, while native PAGE separates based on charge, shape, and mass.

Both SDS-PAGE and native PAGE separate proteins based on their native charge.

SDS-PAGE separates proteins based on charge, while native PAGE separates based on mass.