What property of equality is 8=x?

a.Division Property of Equality
b.Substitution Property of Equality
c.Reflexive Property of Equality
d.Multplication Property of Equality
e.Transitive Property of Congruence
f.Addition Property of Equality
g.Symmetric Property of Equality
h.Symmetric Property of Congruence
i.Reflexive Property of Congruence
j.Subtraction Property of Equality
k.Transitive Property of Equality