Please ignore the previous comment (I have just made a right fool of myself)!
To clarify what I was getting confused with after reading this question...
Class A is the parent class (therefore a super class of all the following classes).
Class B is the sub class of Class A
(Class B can not have more than one super classes! And inherits everything from Class A)
Class C is the sub class of Class B
(Class C inherits from Class B which inherits from Class A, so B gets everything)
That'll teach me NEVER to but in again.
I am Sorry!