C-07-Q100mediumsingle_mcqThe 15th term of the sequence 12,1,32,2,52,3,…\dfrac{1}{2}, 1, \dfrac{3}{2}, 2, \dfrac{5}{2}, 3, \ldots21,1,23,2,25,3,… is —a777b152\dfrac{15}{2}215c