During year 2016, Victor paid rent amounting to 500,000. He owed 50,000 at the beginning of the year and by 31 December 2016, he had paid rent in advance of 100,000. His rent charge for 2016 was?

During year 2016, Victor paid rent amounting to 500,000. He owed 50,000 at the beginning of the year and by 31 December 2016, he had paid rent in advance of 100,000. His rent charge for 2016 was?
350000
450000
500000
550000