Three-dimensional figures with colors of MCG model between the parameters pair B_s, α, B and derived parameter H₀ for three different observational combination, the dashed vertical line is corresponding to the parameter α = 0 or B = 0, whose results, from left to right, are obtained by the different combination of observational data sets CMB+CC (left panel), CMB+JLA (middle panel), and CMB+JLA+CC (right panel).