[solved] Which one of the following does not represent market circumstances that make a focused low-cost or focused differentiation strategy attractive?

When buyers are not strongly brand loyal and have low costs in switching brands 

When it is costly or difficult for multi-segment competitors to put capabilities in place to meet the specialized needs of the target market niche and at the same time satisfy the expectations of their mainstream customers

When the target market niche is big enough to be profitable and offers good growth potential

When the target market niche is not overcrowded with a number of other rivals attempting to focus on the same niche

When the focuser has a reservoir of customer goodwill and loyalty that it can draw upon to help stave off any ambitious challengers looking to horn in on its business.