Consider the Following Domain, Assignment of Objects in the Domain

consider the following domain, assignment of objects in the domain, and assignments sets to predicates.
Domain = {1, 2, 3, ..., 28, 29, 30}
a = 1
e = 21
b = 2
f = 23
c = 4
g = 27
d = 20
h = 29
Ex = {2, 4, 6, ..., 28, 30}
Ox = {1, 3, 5, ..., 27, 29}
Px = (2, 3, 5, 7, 11, 13, 17, 19, 23, 29}
Sxyz = The set of all triples such that the first is the sum of the second and third
{<2, 1, 1>, <3, 1, 2>, <3, 2, 1>, <4, 1, 3>, <4, 2, 2>, <4, 3, 1>, <5, 1, 4>, ... }
-Given the customary truth tables, which of the following theories is modeled by the above interpretation?

A) Sgfc • Sgcf
(∀x) (∀y) (∀z) (Sxyz ≡ Sxzy)
B) Sgba • Sgab
(∀x) (∀y) [(∀z) Sxyz ≡ (∀z) Sxzy]
C) Seda • Sead
(∀x) (∀y) (∀z) (Sxyz ≡ Szyx)
D) Sfea • Sfae
(∀x) (∀y) (∀z) (Sxyz ≡ Syxz)
E) Sdba • Sdab
(∀x) (∀y) [(∀z) (Sxyz ≡ (∀z) Syxz]