The difference in lipid and protein composition between the membranes of the endomembrane system is largely determined by the .

The options to the given are:

A) The physical separation of most membranes from each other.

B) the transportation of membrane lipids among the endomembrane system by small  membrane vesicles.

C) The function of the Golgi apparatus in sorting and directing membrane components.

D) The modification of the membrane components once they reach their final  destination.

E) the synthesis of different lipids and proteins in each of the organelles of the  endomembrane system.

Option C

Explanation:

The difference in the lipids and proteins composition of the different membrane is different.

Different endomembrane system have different composition of the lipids and proteins in its membrane according to the function of he membrane.

The sorting and direction of the proteins is the function of golgi body. So, it is by the action of the golgi body that the distribution and the sorting of the protein molecules are done.

The protein once formed need to be modified and sorted before being functional into the organelles.

this would be a math