【单选题】The last sentence of Paragraph 3 means that______.
A.
engaging people effectively in what they are concerned about is much more valuable than just complaining about people's ignorance of understanding science
B.
to make people take part in what they are interested in, the scientific community should beat drums hard to arouse their interest
C.
the better way to engage people in what they are concerned about is to teach them how to beat a drum