7. Resistors A and B are wired in parallel, and that combination is in turn connected in series to resistor C.

The whole network is then connected across the terminals of a battery. Which of the following statements is true:

(a) the current in C must be less than the current in either A or B;

(b) the current in C must be more than the current in either A or B;

(c) the current in C must equal the sum of the currents in A and B; or

(d) the current in C must exceed the sum of the currents in A and B?