Consider two vectors \[{{\overrightarrow{F}}_{1}}=2\hat{i}+5\hat{k}\] and \[{{\overrightarrow{F}}_{2}}=3\hat{j}+4\hat{k}.\] The magnitude of the scalar product of these vectors is [MP PMT 1987]

• A.                 20          
• B.                 23
• C.                 \[5\sqrt{33}\]   
• D.                 26