What is the difference between bathing soap and washing soaps?

• A
  Bathing soaps are sodium salts,while washing soaps are potassium salts.
• B
  Bathing soaps are potassium salts of long-chain fatty acids,while washing soaps are sodium salts of long-chain fatty acids.
• C
  Bathing soaps contain residual alkali,while washing soaps are free from alkali.
• D
  There is no chemical difference between them.