An unknown polymer sample was found to have the following molecular weight distribution: What would the number average molecular weight of the sample be if before preparation, we had filtered the monomer mixture with a 44kDa dialysis tubing? What if we used a 68kDa dialysis tubing? (Hint: a dialysis tubing of a known molecular weight, only keeps molecules larger than that size) a. Mn=59,559 and Mn=71,734 b. Mn=59,559 and Mn=76,769 c. Mn=35,140 and Mn=71,734 d. Mn=63,404 and Mn=76,769 e. Mn=63,404 and Mn=83,564 f. Mn=35,140 and Mn=83,564