A person going on foot and coming back by rickshaw to a place takes 5 hours and 45 minutes. When he uses rickshaw both ways, he saves two hours, What time will he take if he goes and come back on foot ?

• A. 3 hours 45 minutes
• B. 7 hours 45 minutes
• C. 7 hours 30 minutes
• D. 6 hours 45 minutes