Question

Ou want to visit argentina but your attitude about argentina is changing as you read and think about news regarding kidnappings that have occurred there. which component of attitude is being affected

Answer 1

I believe the answer is: cognitive

The cognitive component would influence your attitude toward a certain things or idea based on the knowledge and logical data that you have.
From the scenario above, the attitude change is happening after you obtain new information regarding the situation in Argentina and logically deduct the threat that you would have to face if you go there.