whiCh oF thE Following is ExAmplE oF tElECommuting As DEsCriBED in thE pAssAgE
A．A sCiEntist in A lABorAtory DEvEloping plAns For A spACE stAtion.
B．A tEChniCAl writEr sEnDing viA ComputEr DoCumEnts CrEAtED At homE.
C．A ComputEr tEChniCiAn rEpAiring An oFFiCE ComputEr nEtwork.
D．A tEAChEr DirECting ComputEr--AssistED lEArning in A privAtE sChool.