The monthly electricity bill for Company XYZ comprises of two components: a flat subscription fee of $300 per month and constant rate per kilo watt of $12. Assume that Company XYZ consumed 500 kilo watts during the month of December, how much the total electricity bill, in ($) value, for the month of December would be? Select one: O a. 6,300 O b. 500 O c. 6,000 O d. 800 O e. None of the given answers