java datastructures net reinforcement - the following questions refer to the tree of figure which node is the rootb what are the internal nodesc how many descendents does node cs haved how many ancestors does node cs havee what are the siblings of node homeworks/ which nodes are in the subtree rooted at node projects/ what is the depth of node papers/ what is the height of the treer- find the value of the arithmetic expression associated with each subtree of the binary tree of figure -