【单选题】

Questions 5 to 7 are based on the following conversation.At the end of the conversation, you will be given 15 seconds to answer the questions.

Now listen to the conversation.
What were the two environment campaigners claims against McDonald’sA．The food carries health risks.
B．McDonald’s workers suffer poor pay and conditions.
C．Eating the company’s hamburgers can cause heart disease.
D．All of the abov