A Team of Astronomers Discovers One of the Most Massive

A team of astronomers discovers one of the most massive stars ever found. If this star is just settling down in that stage of its life where it will be peacefully converting hydrogen to helium in its core, where will we find it on the H-R diagram?

A) among the supergiants, in the upper right
B) a little bit below the Sun on the main sequence
C) among the most brilliant of the white dwarfs, in the lower left
D) near the very top of the main sequence, in the upper left
E) it could be anywhere on the diagram; we would need more information to determine its place