In semiconductor the concentrations of electrons and holes are \[8\times {{10}^{18}}/{{m}^{3}}\] and \[5\times {{10}^{18}}/{{m}^{{}}}\] respectively. If the( mobilities of electrons and hole are \[2.3{{m}^{2}}\]/volt-sec and \[0.01{{m}^{2}}\]/volt-sec respectively, then semiconductor is

• A. \[N\]-type and its resistivity is 0.34 ohm-metre
• B. \[P\]-type and its resistivity is 0.034 ohm-metre
• C. \[N\]-type and its resistivity is 0.034 ohm-metre
• D. \[P\]-type and its resistivity is 3.40 ohm-metre