IB Physics SL E 5 6 Stellar Parallax Topic Practice

The graph shows an incomplete Hertzsprung-Russell (HR) diagram. The position of the Sun and three other stars, A, B and C , are shown.

$M_{\odot}, R_{\odot}$ and $L_{\odot}$ are the mass, radius and luminosity of the Sun.

Suggest whether the method of stellar parallax can be used to measure the distance to star C.