单项选择题
W: What happened
M: Well, I was lying in the sand enjoying the music on the radio, when suddenly I heard someone shouting for help so I jumped up and saw a little boy waving his arms in seawater. I took off my shirt and my watch and jumped into the water. I brought him back.
W: Was there any body else around
M: No. Not at that moment.
W: Where were his parents
M: They were away buying some drinks.
A．No one.
B．The woman.
C．The boy’s parents.