Is the Following Syllogism Valid? Either Some of This Food

Multiple Choice

Is the following syllogism valid? Either some of this food contains peanuts, or I am reacting to a different allergen.
Some of this food does not contain peanuts.
I am reacting to a different allergen.

A) Yes.
B) No, because the "different allergen" is never identified.
C) No, because the disjunctive premise is not in standard form.
D) No, because the second premise does not deny any of the disjuncts.
E) It depends on your view of existential import.