Choose the Correct Answer from the List Below

Choose the correct answer from the list below. Not all of the answers will be used.
-Molecules that bind to a receptor and trigger a signaling pathway are called ______________.

A) enhancers
B) bromodomain
C) regulated
D) chromatin-remodeling engines
E) ligand
F) coactivators
G) agonists
H) histone acetylase
I) citrate
J) TATA box
K) histone deacetylase
L) zinc finger