(A) ICS or ICS-like EOC structure
(B) Departmental Structure
(C) Incident Support Model (ISM) structure
(D) Strategic Joint Command Structure
Answer is (A) ICS or ICS-like EOC structure
ICS or ICS-like EOC structure aligns with the on-scene incident organization. Many organizations, jurisdictions, and associations configure their EOCs by using the general organizational structure of ICS. They use it either as or by modifying it slightly. The structure is similar, and it lines up with the on-scene incident organization.