The correct answer is A. 1.5 and 2.2.
The load factor is a multiplier that is used to account for the uncertainty in the load. The live load is the load that is imposed on a structure by people, furniture, and other movable objects. The dead load is the load that is imposed on a structure by its own weight and the weight of any permanent fixtures.
The load factors for live load and dead load are taken as 1.5 and 2.2, respectively, in accordance with the International Building Code (IBC). This means that the live load is multiplied by 1.5 to account for the uncertainty in the load, and the dead load is multiplied by 2.2 to account for the uncertainty in the load and the fact that the dead load is always present.
Option B is incorrect because the load factor for live load is 1.5, not 2.2. Option C is incorrect because the load factor for dead load is 2.2, not 1.5. Option D is incorrect because both the load factor for live load and the load factor for dead load are 2.2.