{{B}}pAssAgE thrEE{{/B}}

As is stAtED in thE pAssAgE, lEArning ______.A．is gEnErAlly A ComplEx BiologiCAl proCEss
B．hAs nothing to Do with orgAniC DEvElopmEnt
C．is mostly inDEpEnDEnt oF ExtErnAl EnvironmEntAl ConDitions
D．is DirECtED to ChAngEs thAt CAn BE AttriButED to trAining