The diagram shows a capacitor C and a resistor R connected in series to an ac source. V₁  and V₂  are voltmeters and A is an ammeter

Consider now the following statements
I. Readings in A and $V_2$ are always in phase
II. Reading in $V_1$ is ahead in phase with reading in $V_2$
III. Readings in A and $V_1$ are always in phase 

Which of these statements are/is correct  

• A

  I only 

• B

  II only

• C

  I and II only

• D

  II and III only