If a and b are positive and a\not\equal{} 1,\,b\not\equal{} 1, then the value of blogba is:
<spanclass=′latex−bold′>(A)</span>dependent upon b<spanclass=′latex−bold′>(B)</span>dependent upon a<spanclass=′latex−bold′>(C)</span>dependent upon a and b<spanclass=′latex−bold′>(D)</span>zero<spanclass=′latex−bold′>(E)</span>one