The PKs of Succinic Acid Are 4

The pKs of succinic acid are 4.21 and 5.64.How many grams of monosodium succinate (FW = 140 g/mol) and disodium succinate (FW = 162 g/mol) must be added to 1 L of water to produce a solution with a pH 5.28 and a total solute concentration of 100 mM? (Assume the total volume remains 1 liter,answer in grams monosodium succinate,grams disodium succinate,respectively. )

A) 11.3 g,4.2 g
B) 9) 7 g,4.9 g
C) 4) 9 g,9.7 g
D) 14.9 g,1.1 g
E) 1) 1 g,14.9 g