The nuclear envelope functions as a

A)The nuclear envelope functions as a means of sequestering many of the mRNA processing activities from the cytosol.

B) means of localization of the chromosomes within the cell.

C) selective barrier that separates nuclear and cytoplasmic constituents, localizes chromosomes within the cell, and sequesters many of the mRNA processing activities from the cytosol.

D) means of separating nuclear and cytoplasmic constituents. selective barrier, allowing certain substances in or out.

Option C) selective barrier that separates nuclear and cytoplasmic constituents, localizes chromosomes within the cell, and sequesters many of the mRNA processing activities from the cytosol.

Explanation:

The nuclear membrane is a double membrane surrounding the nucleus of eukaryotes. It consists of outer and inner membranes perforated by nuclear pores. Thus, it serves as a selective barrier between the nucleus and cytoplasm, also restricting post translational modification activities to the nucleus. As well, the nuclear envelope is absent in prokaryotes.