please solve this and show the workings in detail

11. An organisation is preparing its sales budget for the year ended 31 December 20\". I1 expects to sell 2000 units of product A per month. The current sale price is $500 per unit and this will increase by10% in June. Demand for Product B is declining. First quarter sales are expected to be 000 units in total and this will drop by 1000 units per quarter for each of the next three quarters. The selling price will be constant at $300 per unit. Product C will be introduced in September. Sales are expected to be 500 units per month at a selling price of $100 per unit. What is the budgeted sales revenue for the year? A $15,800,000 B $15,850,000 c $15,900,000 D $16,800,000