What is the mathematical expression for a 50 Hz sinusoidal voltage of peak value 100 V?

• A. \(\frac{{100}}{{\sqrt 2 }}\sin 100\pi t\;V\)
• B. 100 sin 100 π t V
• C. 50 sin 100 π t V
• D. \(\frac{{100}}{{\sqrt 2 }}\sin 50t\;V\)