The Iron We Commonly Find in Our Surroundings Came From

Multiple Choice

The iron we commonly find in our surroundings came from:

A) the iron core of a massive star which exploded as a Type I supernova.
B) planetary nebulae.
C) jets ejected by a rapidly spinning pulsar.
D) material ejected by a nova explosion.
E) decay of nickel 56 and cobalt 56 in a supernova remnant.