[This is the stem.] (4 points) Supports the Big Bang Theory Does not support the Big Bang Theory Doppler Blueshift Supports the Big Bang Theory – Doppler Blueshift Does not support the Big Bang Theory – Doppler Blueshift Doppler Redshift Supports the Big Bang Theory – Doppler Redshift Does not support the Big Bang Theory – Doppler Redshift Singularity Supports the Big Bang Theory – Singularity Does not support the Big Bang Theory – Singularity Background Gamma Rays

It is not clear from the given stem whether the background gamma rays support or do not support the Big Bang Theory. More information is needed to determine their role in supporting or opposing the theory.