Give the various tests required to evaluate the Ethical Theories? 

o Theory must be clear, and formulated with concepts that are coherent and applicable. 

o It must be internally consistent in that none of its tenets contradicts any other. 

o Neither the theory nor its defense can rely upon false information. 

 o It must be sufficiently comprehensive to give guidance in specific situations of interests to  us. 

o It must be compatible with our most carefully considered moral convictions about concrete situations.