Which statement correctly distinguishes the SAS and ASA criteria for triangle congruence?
(a) In the SAS criterion, the known angle may be any angle of the triangle, not necessarily the one between the two given sides, whereas the ASA criterion fixes the side between the two given angles.
(b) Under ASA, the given side need not lie between the two known angles, but in SAS the given angle must be between the two known sides.
(c) In SAS, the included angle lies between the two given sides, whereas in ASA the included side lies between the two given angles.
(d) Both SAS and ASA involve two equal parts and one angle, so there is effectively no practical distinction between them.