___ are particularly appealing because they can best serve the special needs of different customer groups.

A) Product structures
B) Process structures
C) Matrix structures
D) Customer structures
E) Geographical structures

Customer structures are designed to cater to the specific needs of different customer groups. They are organized around customer segments, such as geography, industry, or product type, and can provide a more personalized approach to customer service and support. This type of structure enables companies to better understand their customers and tailor their products and services to meet their unique needs, ultimately improving customer satisfaction and loyalty.