whAt DEtErminEs thE rAtE oF ExChAngE BEtwEEn CurrEnCiEs will BE ExAminED lAtEr in this BooklEt, But First it is usEFul to ConsiDEr thE mEChAniCs oF intErnAtionAl trAnsACtions. to EnABlE A uk importEr to pAy hisAmEriCAn suppliEr, For ExAmplE, thE FACilitiEs oF two or morE BAnks ArE usED, Firstly in hAnDling thE oFtEn ComplEx DoCumEntAtion AnD sEConDly, through thE ForEign ExChAngE mArkEt, in oBtAining thE CurrEnCy rEquirED、At onE timE pAymEnts to AnD From othEr CountriEs wErE mADE By Bills oF ExChAngE; hEnCE in pArt thE tErm "ExChAngE rAtE", whiCh wAs mAintAinED EvEn though othEr mEthoDs oF pAymEnt hAvE lArgEly supErsEDED thE Bill oF ExChAngE. thEBritish importEr will proBABly nEED to pAy hisAmEriCAn suppliEr in DollArs AnD hisBritish BAnk CAn oFFEr him sEvErAl AltErnAtivE mEthoDs oF sEttlEmEnt. it CAn proviDE him with A BAnkEr’s DrAFt DrAwn in DollArs. thE BAnk is ABlE to Do this BECAusE it will hAvE An ACCount with AnothEr BAnk (CAllED A CorrEsponDEnt BAnk) in AnAmEriCAn City AnD it simply issuEs A DollAr ChEquE or DrAFt DrAwn on thAt ACCount. thEBritish importEr CAn thEn sEnD this DrAFt By AirmAil to thE suppliEr. sinCE thErE is A DAngEr thAt thE DrAFt mAy BE lost or FAll into thE wrong hAnDs’ thE sAFEr AnD morE normAl mEthoD woulD BE For thEBritish BAnk to ArrAngE For pAymEnt By mAil trAnsFEr. instruCtions ArE sEnt By AirmAil to thE CorrEsponDEnt BAnk in thE us to pAy on BEhAlF oF its CustomEr thE rEquirED sum to thE nAmED rECipiEnt From thEBritish BAnk’s DollAr ACCount. this mAil trAnsFEr systEm is vEry FlExiBlE sinCE thE instruCtions For pAymEnt CAn BE vAriED or ElABorAtED to suit prACtiCAlly EvEry kinD oF rEquirEmEnt.

how mAny mEthoDs oF sEttlEmEnt ArE mEntionED in this pAssAgE whEn thEBritish importEr nEEDs DollAr to pAy hisAmEriCAns suppliErA．two.
B、thrEE.
C．onE.
D．sEvErAl.