Which of the Following Arguments Would Render the Discovery of a 100

Which of the following arguments would render the discovery of a 100 M_SUN star with less than 0.5 percent massive elements most intriguing?

A) Such high-mass stars shine mostly in the UV domain of the spectrum.
B) Young stars typically have much higher massive-element abundances than older stars.
C) Stars of such high mass very rarely form within interstellar clouds.
D) Stars like this one are most likely found in open clusters.
E) It would be the first star of such mass ever discovered.