John has two hours of free time this evening. he ranked his alternatives, first go to a concert, second go to a movie, third study for an economics exam, and fourth answer his e-mail. what is the opportunity cost of attending the concert for john?

 The correct answer is :  attending a movie

Explanation:  Because of the shortage that we currently face each election implies an opportunity cost. The opportunity cost is an economic concept that is defined as the alternative of greater value that is abandoned in order to obtain something.

acts of terrorism occur globally. the united nations global counter-terrorism strategy was created in order to build adequate systems of support and solidarity with victims of terrorism. here´s a summary of the proposed key themes: the importance of giving victims a face and a voice; protecting their dignity; giving victims legal status and defending their legal rights; providing victims with medical, psycho-social and financial support; building solidarity with victims; improving media coverage of victims; and focusing on the link between victims and counter-terrorism efforts more generally.

the correct answer is c.