Mastercard's competitors were using appeals by stressing the benefits of deals and discounts in its messages. in its priceless campaign, mastercard chose to use appeals by focusing on desires such as love and happiness.

The answer is informational;emotional.
Informational appeal refers to efforts to influence someone's decision by appealing to their rational thought.
Emotional appeal on the other hands is an effort to influence decision based on that person's feeling or value.

United states v.  nixon, 418  u.s.  683 (1974),  was  a landmark  united states supreme court case  that resulted in a unanimous  decision  against president richard  nixon, ordering him to deliver tape recordings  and  other subpoenaed materials to a  federal  district  court.