What was happening elsewhere in the universe when the first complex life appeared on Earth?

Question

Quizplus · Accepted Answer

The formation of A-type stars takes millions of years, so some of the stars we see in the sky today were likely still in the process of forming when complex life first appeared on Earth.

Answer: C 
 Light from stars on the other side of the Milky Way takes tens of thousands of years to reach us, so the light we see from those stars was just starting its journey when complex life first appeared on Earth.

Answers A and D are incorrect. The formation of the Milky Way galaxy and the late heavy bombardment in our solar system occurred much earlier than the appearance of complex life on Earth.

What Was Happening Elsewhere in the Universe When the First