A household circuit can have any two of the following appliances switched on at the same time: a 1000 W iron, a 600 W toaster and a 60 W lamp. The supply voltage is 220 V. Which fuse rating should be chosen so that any two appliances can run together without the fuse blowing, yet the circuit remains protected?
a) 7 A
b) 5 A
c) 8 A
d) 10 A