【单选题】Read the paragraph from the article. The floating device is designed to be tied down in rivers. It has a shaped nose to keep away larger floating items, like tree trunks. The Interceptors work by guid...
A.
It shows what problems the "Interceptor" still has.
B.
It explains how the "Interceptor" cleans the rivers.
C.
It shows which countries are using the "Interceptor."
D.
It explains people's reactions to the "Interceptor."