Buttenhaus, a German Company That Reports Using IFRS, Has a Financial

Buttenhaus, a German company that reports using IFRS, has a financial relationship with Zeta, but does not own any of its voting stock. When should Buttenhaus consolidate Zeta's accounts with its own in its annual report?

A) Never
B) If Zeta is a variable interest entity and a special purpose entity, Buttenhaus should consolidate it.
C) If Zeta is a variable interest entity and Buttenhaus is its primary beneficiary, Buttenhaus should consolidate it.
D) If Buttenhaus controls Zeta's operations, Buttenhaus should consolidate it.