Gulshan starts from a place P at 2 p.m. and walks to Q at 5 km per hour. Tarun starts from P at 3 p.m. and follows Gulshan on icycle at 10 km per hour By when Tarun will catch Gulshan?

• A. At 5.30 p.m.
• B. At 4.00 p.m.
• C. At 4.30 p.m.
• D. At 6.00 p.m.