What is the range of timescales for star formation?
A) from 1 million years for the most massive stars up to 10 million years for the least massive stars
B) from 1 million years for the most massive stars up to 100 million years for the least massive stars
C) from 1 million years for the least massive stars up to 10 million years for the most massive stars
D) from 1 million years for the least massive stars up to 100 million years for the most massive stars
E) about 30 million years for all stars, whatever mass
Answer: B