Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R) Assertion (A): Quillaia tincture is included in Potassium Citrate Mixture BPC. Reason (R): Because Quillaia tincture act as an emulgent in Potassium Citrate Mixture BPC, and prevent separation of lemon oil as a surface layer when the lemon spirit is added. In light of the above statements, choose the correct answer from the options given below