It Is Suspected That a Novel Histone Protein Only Interacts $\beta$

Multiple Choice

It is suspected that a novel histone protein only interacts with the promoter region of $\beta$ -globin genes.Which of the following techniques should be used to confirm this suspicion?

A) EMSA
B) DNase footprinting
C) filter binding
D) gel mobility shift assay
E) all of the choices are correct.