The live load to be considered for an inaccessible roof, is A. Nil B. 75 kg/m2 C. 150 kg/cm2 D. 200 kg/m2

The correct answer is A. Nil.

A live load is a load that is not permanently applied to a structure. It can include loads from people, furniture, equipment, and snow. The live load for an inaccessible roof is typically taken as zero, since there is no reason to expect people or other objects to be on the roof.

Option B, 75 kg/m2, is the live load for a roof that is accessible for maintenance or repair. Option C, 150 kg/cm2, is the live load for a roof that is used for storage or other purposes. Option D, 200 kg/m2, is the live load for a roof that is used for parking or other heavy loads.