Which of the following are types of prescription drug advertising? O Free samples Detailing All of the above Direct-to-Consumer Advertising (DTCA) 2 Pharmaceutical firms charge different prices in different countries after because Government regulations are different between countries O Demand elasticities are different between countries O Both a and b Neither a nor b Axon pharma specializes and is the market leader in vaccines. They decide to acquire another company that specializes in cancer drugs. This is an example of: O Vertical merger Horizontal merger Diagonal merger None of the above