An example of explicit collusion is a. where firms meet and agree to not compete, and an example of implicit collusion is firms forming a cartel. b. price leadership, and an example of implicit collusion is firms forming a cartel. c. where firms meet and agree to charge the same price, and an example of implicit collusion is price leadership. d. firms advertising that they will match the lowest price offered by any competitor, and an example of implicit collusion is price leadership. e. price leadership, and an example of implicit collusion is firms advertising that they will match the lowest price offered by any competitor.