Four resistors R1,R2,R3 and R4 are connected in series as shown above, V1,V2,V3 are voltmeters connected as indicated above. Which of the following relations is correct??

• A.V1 = V3 =V2/2
• B.V1 = 2V2 = V3
• C.V1=1/2V3 =V3
• D.V2 - V1 = V3
• E.