If \(\rm \frac{\tan x}{2}= \frac{\tan y}{3} = \frac{\tan z}{5}\) and x + y + z = π, then the value of tan2 x + tan2 y + tan2 z is:

• A. \(\frac{38}{3}\)
• B. \(\frac38\)
• C. \(\frac{11}4\)
• D. None of these.