Three Acids Found in Foods Are Lactic Acid (In Milk

Multiple Choice

Three acids found in foods are lactic acid (in milk products) , oxalic acid (in rhubarb) , and malic acid (in apples) . The pK_a values are LA = 3.88, OA = 1.23, and MA = 3.40. Which list has these acids in order of decreasing acid strength?

A) LA > OA > MA
B) LA > MA > OA
C) OA > MA > LA
D) OA > LA > MA
E) MA > LA > OA