The year end of M Inc is 30 November 20X0. The company pays for its gas by a standing order of $600 per month. On 1 December 20W9, the statement from the gas supplier showed that M Inc had overpaid by $200. M Inc received gas bills for the four quarters commencing on 1 December 20W9 and ending on 30 November 20X0 for $1,300, $1,400, $2,100 and $2,000 respectively. Which of the following is the correct charge for gas in M Inc's statement of comprehensive income for the year ended 30 November 20X0?