单项选择题The agent must act solely in the client's best interests, must always put the client's interests above the agent's own interests and above the interests of other parties. This means ( ). A、facing conflicts of interest and protecting the client's negotiating position at all times B、facing conflicts of interest and hurting the client's negotiating position at all times C、avoiding conflicts of interest and protecting the client's negotiating position at all times D、avoiding conflicts of interest and hurting the client's negotiating position at all times