Considering the hydrated ions of Ti2, V2, Ti3, and Sc3, what is the correct order of their spin-only magnetic moment?
a) Ti2 < V2 < Ti3 < Sc3
b) Ti3 < V2 < Ti2 < Sc3
c) V2 < Ti2 < Ti3 < Sc3
d) Sc3 < Ti3 < V2 < Ti2