question_answer

Consider the following statements : The system of equations \[2x-y=4\] and \[px-y=q\]

\[\text{I}\]has a unique solution if \[p\ne 2\].

\[\text{II}\]has infinitely many solutions if p = 2, q = 4 of these statements :

A)  \[\text{I}\] alone is correct.

B)  \[\text{II}\] alone is correct.

C)  \[\text{I}\] and \[\text{II}\] are correct.  

D)  \[\text{I}\] and \[\text{II}\] are false.