A local electricity company charges $1.00 per kWh for the first 2000 kWh and $3.50 for every kWh afterwards. A fuel adjustment charge of
$0.50 per kWh is added to all electricity bills. If Mrs. Browns previous
monthly meter reading was 17 800 kWh and the current monthly meter
reading is 20 300 kWh, calculate the electricity bill for Mrs Brown for
the current month.​

Iwas going to ask that quesytion  sorry dude i dont  know : (    : /

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current

Answerigneous bedrock of the oceanic crust;