Final answer:
Rating badges with white backgrounds are typically made from synthetic materials because they offer durability, ease of maintenance, and cost-effectiveness compared to natural fibers like wool and cotton or leather.
Step-by-step explanation:
The question on what fabric should be used for rating badges with white backgrounds is typically related to military or organizational uniforms. In the context of most uniform standards, synthetic materials are often preferred for such badges due to their durability, ease of maintenance, and professional appearance. Therefore, the correct answer to the question is C) Synthetic materials.
Rating badges, also known as insignia or patches, are commonly made from synthetic materials like polyester or acrylic because these materials can withstand washing and various environmental conditions without degrading or losing color as quickly as natural fibers like wool and cotton. They also tend to be more cost-effective in the long run. Using leather for a rating badge with a white background would be unusual, as leather is not typically conducive to the conditions in which uniforms are used and maintained.