Answer:
The correct answer is "Both minerals have the same true color".
Step-by-step explanation:
A mineral color streak refers to the color the mineral displays when is in a finely powdered form. Even though the color streak could be completely different from the one the mineral displays when is as a hand specimen, it is considered that the true color of the mineral is the color streak. Therefore, maybe mineral A and mineral B are purple and black when they are as hand specimen, respectively. But if both minerals leave the same color streak, both minerals have the same true color.