Excess property of a component can be schematically represented by

(a) \(H^{\mathrm{E}}=H-H^{\text {id }}\)

(b) \(H^{\mathrm{E}}=H^{\text {id }}-H\)

(c) \(H^{\mathrm{E}}-H^{\mathrm{id}}=H\)

(d) None of these.