C-04-Q012mediumsingle_mcqb×b×b×b×bb \times b \times b \times b \times bb×b×b×b×b equals—a5b5b5bbb5b^5b5cb4b^4b4d5b5^b5bব্যাখ্যাHere bbb is multiplied five times, so it is expressed compactly as b5b^5b5.