<span>Gap 4, which deals with lowering customer expectations, can be closed at any time. While the first three gaps are concerned with raising company performance to meet expectations, gap 4 aims to lower customer expectations to meet perceptions. The two approaches to closing the customer gap operate on different principles and therefore can occur independently. Incidentally, closing gap 4 can be more economical than closing the other gaps.</span>
C.Halite is the correct answer these are formed by the evaporation of seawater and the salt remaining to help the rock to form.
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