Subspaces and quotient spaces of {Mathematical expression} and {Mathematical expression}

Let (G _n) be a sequence which is dense (in the sense of the Banach-Mazur distance coefficient) in the class of all finite dimensional Banach spaces. Set {Mathematical expression}. It is shown that a Banach space X is isomorphic to a subspace of C _p (1<p≦∞) if and only if X is isomorphic to a quotient space of C _p.