According to the advertisement, what is NOT a position that needs to be filled? 1. PR Specialist 2. Account Manager 3. Finance Analyst 4. Credit Representative 해설에 4는 본문에 언급되어 있었다는데 어디에 언급된건지, 또 2번은 왜 안되는지 해설해주실 분 찾습니다!