Let `f(x)=sinx and g(x)=(log)_e|x|` If the ranges of the composition functions `fog and gof` are `R_1 and R_2,` respectively then (a) `R_1{u:-1 le u < 1}, R_2={v:-oo v < 0}` (b) `R_1={u:-oo < u < 0}, R_2={v:-oo < v < 0}` (c) `R_1={u:-1 < u < 1},R_1={v:-oo V le 0}`