Answer:
The answer is "Option 4".
Explanation:
O'Dwyer's is the first provider of public relations information and local PR counsels. For 49 years, It prints the electronic directory of PR firms acts as a gateway to PR agencies and their customers. It sustained currency growth of only 4.4 percent, that has seen its dominance over Weber Shandwick slip, and Edelman maintains the world's largest PR agency, That's why except all choices are incorrect, which can be described as follows: