whiCh oF thE Followings might BE tAkEn As thE topiC oF thE pAssAgE
A．phonE CAlls viA intErnEt
B．nEw tEChnology on-linE
C．voip mAking its wAy into FAmiliEs
D．thE wAy to hAvE A moBilE phonE, numBEr