Given the Following Syllogism

Multiple Choice

Given the following syllogism:
All unicorns are gazelles.
No lions are gazelles.

Some unicorns are not lions.
This syllogism commits the existential fallacy from:

A) The Aristotelian standpoint but not from the Boolean standpoint.
B) The Boolean standpoint but not from the Aristotelian standpoint.
C) Both the Boolean and the Aristotelian standpoints.
D) Neither the Boolean nor the Aristotelian standpoint.
E) The syllogistic standpoint.