A $240\ \text{V}$ mains circuit has eight $60\ \text{W}$ lamps connected in parallel. At the instant the lamps are switched on, the filaments are cold, and the current is four times the final steady current in the circuit. What is the initial current supplied by the mains?
- A$0.25\ \text{A}$
- B$1.0\ \text{A}$
- C$2.0\ \text{A}$
- D$8.0\ \text{A}$