in thE sEConD pArAgrAph, thE Author tElls us thAt ______.
A．A BEttEr ExplAnAtion oF thE grEAt issuE oF our timE hAs somE ADvAntAgEs
B．nonspECiAlists CAn gEt hElp From stuDying in CollEgEs AnD univErsitiEs
C．EDuCAtion systEm will BEnEFit From thE rEsEArCh oF thE grEAt issuE oF our timE
D．All oF thE ABovE