The name of the group of proteins in the peroxisomal membrane is

The correct option is Peroxins.

Peroxisomes are membrane-bound organelles found in eukaryotic cells that play crucial roles in lipid metabolism, fatty acid oxidation, and the detoxification of hydrogen peroxide. The biogenesis of peroxisomes, including the import of proteins into the peroxisomal matrix and the assembly of the peroxisomal membrane, is mediated by a specialized group of proteins.
These proteins, which are encoded by the PEX genes, are collectively called peroxins (or PEX proteins). Peroxins can be soluble receptors in the cytosol or integral membrane proteins embedded within the peroxisomal membrane. They facilitate the targeting, docking, and translocation of peroxisomal matrix proteins containing specific peroxisomal targeting signals (PTS1 or PTS2) from the cytosol into the organelle.

While the terms "Translocation proteins", "Transporters", and "Peroxisomal membrane proteins" are broad categories that describe protein functions or locations, the specific, established name for this dedicated group of proteins involved in peroxisome biogenesis and membrane function is peroxins.