What Recent Evidence Has Indicated That the Initial Condensation That

What recent evidence has indicated that the initial condensation that occurred in a gas and dust cloud to produce the Sun was caused by a nearby supernova explosion?

A) the abnormal velocity of the Sun with respect to the spiral arm in which it is located, indicating a major disturbance in the past
B) meteorites containing heavy elements produced only in supernova explosions
C) a vast shell of gas moving outward at a great speed from a position in our galaxy near to the Sun
D) a layer of Earth's crust containing abnormal amounts of the rare metal iridium