Final answer:
The insulators that bind the BEAF protein in the heat shock locus of Drosophila are the scs and scs elements.
Step-by-step explanation:
The insulators that bind the BEAF protein in the heat shock locus of Drosophila are the scs and scs elements. These elements play a role in organizing the chromatin structure and regulating gene expression. The BEAF protein helps in the insulation of gene regulatory elements, preventing interference between neighboring genes.