If $\mathrm{\alpha },\mathrm{\beta },\mathrm{\gamma }$ are the real roots of the equation ${\mathrm{x}}^3-3{\mathrm{px}}^2+3\mathrm{qx}-1=0$ then the centroid of the triangle with vertices $\left(\mathrm{\alpha },\frac{1}{\mathrm{\alpha }}\right),\left(\mathrm{\beta },\frac{1}{\mathrm{\beta }}\right)\text{ and }\left(\mathrm{\gamma },\frac{1}{\mathrm{\gamma }}\right)$ 

is at the point 

• A

  (p, q)

• B

  (p/3, q/3)

• C

  (p + q.p - q)

• D

  (3p, 3q)