Westmalle Brewery (Brouwerij der Trappisten van Westmalle) is a Trappist brewery in the Westmalle Abbey, Belgium. It produces three beers, designated as Trappist beer by the International Trappist Association. Westmalle Tripel is credited with being the first golden strong pale ale to use the term Tripel.
Westmalle Brewery produces more than four beers, but less than seven beers.
It's definitely incorrect because it only produces three beers, which is not more than four. It's difficult probably because it's a complex question with multiple calculations and comparisons to understand.