How many kites are there such that all of its four vertices are vertices of a given regular icosagon (20-gon)?<spanclass=′latex−bold′>(A)</span>105<spanclass=′latex−bold′>(B)</span>100<spanclass=′latex−bold′>(C)</span>95<spanclass=′latex−bold′>(D)</span>90<spanclass=′latex−bold′>(E)</span>85