Given the Following Syllogism

Multiple Choice

Given the following syllogism:
All flying elephants are pachyderms.

This syllogism is:

A) Invalid from both the Boolean and the Aristotelian standpoint.
B) Valid from the Boolean standpoint and invalid from the Aristotelian standpoint.
C) Valid from both the Boolean and the Aristotelian standpoints.
D) Valid from the Aristotelian standpoint on condition pachyderms exist.
E) Valid from the Aristotelian standpoint and invalid from the Boolean standpoint.