Rajesh was shifting his shop. When he tried to pack 85 similar cartons in each bag, he realised that he could not completely fill 9 bags. However, when he reduced the number of cartons in each bag to 58, 13 bags got insufficient. However, at the end he could pack all the cartons by packing X carton in X bags. How many total cartons did he have?

• A. 729
• B. 765
• C. 784
• D. 812