What is the primary factor that contributed to Target's decision to purchase Zellers?

Target's decision to purchase Zellers was primarily motivated by the desire for an instant presence in Canada. Acquiring Zellers allowed Target to quickly establish itself in a new market without the lengthy process of building stores from the ground up. This strategic move provided Target with a ready-made infrastructure, including locations, staff, and a customer base that had been accustomed to shopping at Zellers.

The other options, while potentially relevant to Target's broader strategy, did not drive the decision to purchase Zellers specifically. The focus was on rapidly entering the Canadian marketplace, which was achieved through this acquisition.