Electromagnetic waves travel in a medium which has relative permeability 1.3 and relative permittivity 2.14. Then the speed of the electromagnetic wave in the medium will be [MH CET 2003]

• A.            \[13.6\times {{10}^{6}}\,m/s\]                                         
• B.            \[1.8\times {{10}^{2}}\,m/s\]
• C.            \[3.6\times {{10}^{8}}\,m/s\]                                           
• D.            \[1.8\times {{10}^{8}}\,m/s\]