What is the angle between \[\overrightarrow{P}\] and the resultant of \[(\overrightarrow{P}+\overrightarrow{Q})\] and \[(\overrightarrow{P}-\overrightarrow{Q})\]

• A.        Zero      
• B.        \[{{\tan }^{-1}}(P/Q)\]
• C.        \[{{\tan }^{-1}}(Q/P)\]  
• D.        \[{{\tan }^{-1}}(P-Q)/(P+Q)\]