What is the minimum width and height of the passage way required as per NBC 2005 for the fire fighting vehicles to enter the premises at the main entrance?

A

Width 6.0 m and height 6.5 m

B

Width 4.5 m and height 6.0 m

C

Width 6.0 m and height 5.0 m

D

Width 4.5 m and height 5.0 m