In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at A. Less loaded column B. More loaded column C. A point of the maximum shear force D. A point of zero shear force

The correct answer is: B. More loaded column.

The maximum hogging bending moment occurs at the more loaded column because the more loaded column has a greater moment arm. The moment arm is the distance from the neutral axis to the point of application of the load. The greater the moment arm, the greater the bending moment.

Option A is incorrect because the less loaded column has a smaller moment arm and therefore a smaller bending moment.

Option C is incorrect because the maximum shear force occurs at the point of zero bending moment.

Option D is incorrect because the maximum bending moment does not occur at a point of zero shear force.