If \[({{L}_{1}}''{{L}_{2}})({{V}_{1}}''{{V}_{2}})\] means \[[({{L}_{1}}''{{L}_{2}})({{V}_{1}}''{{V}_{2}})]*60\], \[({{L}_{1}}'{{L}_{2}})({{V}_{1}}'{{V}_{2}})\] means \[\bigcirc c\],\[\underset{\_\_}{\mathop{\bigcirc c}}\,\] means \[\underset{\_\_\_}{\mathop{*}}\,\] and \[\bigcirc c\] means \[\underset{\_\_}{\mathop{\bigcirc c}}\,\] then \[\underset{\_\_\_}{\mathop{*}}\,\]

• A.  \[\bigcirc c\]                           
• B. 2
• C. 4                                 
• D. 8