The shearing strain component in Y-Z plane is ________

• A. ( _{yz} = frac{ w}{ y}+ frac{ v}{ z} )
• B. ( _{yz} = frac{ v}{ x}- frac{ w}{ y} )
• C. ( _{yz} = frac{ v}{ y}+ frac{ w}{ x} )
• D. ( _{yz} = frac{ v}{ y}- frac{ w}{ x} )