The adjacent figure shows I-V characteristics of a silicon diode. In this connection three statements are made, namely (I) the region OC corresponds to reverse bias of the diode, (II) the voltage at point A is about 0.2 volt, and (III) different scales have been used along +ve and -ve directions of Y axis. Therefore,

A

only statement (I) is correct

B

only statements (I) and (II) are correct

C

only statements (I) and (III) are correct

D

all statements (I), (II) and (III) are correct