If \[|\vec{a}|\,=4,\,\,|\vec{b}|\,=2\] and the angle between \[\vec{a}\] and \[\vec{b}\] is \[\pi /6\] then \[{{(\overrightarrow{a}\times \overrightarrow{b})}^{2}}\] is equal to

• A. 48        
• B.        16   
• C. 4                     
• D.        2