Q. For a steel grillage footing to support two unequal column loads

• (A) Line of action of the resultant of two column loads, is made to coincide with the centre of gravity of the base of the footing
• (B) Trapezoidal shape is used for the base footing
• (C) Projections of beams on either side in lower tier are such that bending momentsunder columns are equal
• (D) All the above