whiCh oF thE Following stAtEmEnts ABout thE pAn AmEriCAn hEAlth orgAnizAtion is truE
A．it wAs EstABlishED in 1920 AnD hAs 35 mEmBErs.
B．it rEprEsEnts north, CEntrAl AnD south AmEriCA in thE worlD hEAlth orgAnizAtion.
C．thE unitED stAtEs, mExiCo AnD CAnADA ArE its only mEmBErs.
D．it is BAsED in CAnADA.