<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>
Answer:
<h2>C. To date rock layers</h2>
Explanation:
<em>They can help determine the relative age of rock layers</em>.
Answer:
Pretty sure it's A because people can redo this test as many times as needed to verify the answer.