Which of the following is/are incorrect about a staircase?(i) String is the part of tread which is projecting beyond the face of the riser(ii) Soffit is a sort of additional moulding provided under the nosing or tread to beautify the step in elevation(iii) Baluster is a member supporting the handrail(iv) Newel post is a vertical member at the ends of flights

• A. Only (i)
• B. (i) and (ii)
• C. (i) and (iii)
• D. (ii) and (iv)