44. A sample containing three proteins (A, B, and C) was analyzed by SDS-PAGE, as shown below. Size exclusion chromatography (also known as gel filtration) was utilized for their separation. Which protein will elute first through size exclusion chromatography? (A)A (B)B (C)C (D) It depends on the shape and oligomerization state of the proteins. (E) It depends on the isoelectric point (pI) of the proteins.