निम्नलिखित में से किसे भवन के बुनियादी संरचनात्मक घटक के बजाय फिनिशिंग कार्य (finishing work) के रूप में वर्गीकृत किया गया है?

Which of the following statements conform(s) to panel walls in building construction? 1. Panel walls are external load bearing walls. 2. They are self supporting walls subjected to lateral loads. 3. They are primarily used in framed structures.

Which of the following statements conforms to 'corbels' in masonry?