I. Negotiation skills play a crucial role in successful business deals. II. Polar bears rely heavily on sea ice to hunt for seals. III. Effective negotiators prepare thoroughly before entering important discussions. IV. Understanding the other party's priorities often leads to better outcomes. V. Many business schools now offer dedicated courses in negotiation strategy. (I-V) numaralı cümlelerden hangisi parçanın bütünlüğünü bozmaktadır?