Jazz music had many different aspects, as we learned. Find three jazz composers on the internet and write a brief essay about their lives and their music. Include their most prominent works and why they were the dominant figures in the jazz era.

The answers is bad germs in their

The problem here is that according to aufbau principle before 3d orbital 4s subshell comes.after filling 3p orbital with electrons you have 4 electrons left, you place two in 4s with opposite spin and the other two in 3d in any of its two orbitals of total five orbitals with the same spin.

Sorry i think the answer is b