The monthly electricity bill for Company XYZ comprises of two components: a flat subscription fee of $250 per month and constant rate per kilo watt of $10. Assume that Company XYZ consumed 500 kilo watts during the month of December, how much the total electricity bill, in ($) value, for the month of December would be? Select one: a. 500 b. 5,250 c. None of the given answers d. 750 e. 5,000