On simplification, \(\frac{{{x^3} - {y^3}}}{{x[{{\left( {x + y} \right)}^2} - 3xy]}} \div \frac{{y\left[ {{{\left( {x - y} \right)}^2} + 3xy} \right]}}{{{x^3} + {y^3}}} \times \frac{{{{\left( {x + y} \right)}^2} - {{\left( {x - y} \right)}^2}}}{{{x^2} - {y^2}}}\) is equal to:

• A. 1
• B. 4
• C. 1/4
• D. 1/2