How many sequences of zeros and ones of length 20 have all the zeros consecutive, or all the ones consecutive, or both?<spanclass=′latex−bold′>(A)</span>190<spanclass=′latex−bold′>(B)</span>192<spanclass=′latex−bold′>(C)</span>211<spanclass=′latex−bold′>(D)</span>380<spanclass=′latex−bold′>(E)</span>382