Which of the following is a common problem associated with carbon fiber?

Carbon fiber is renowned for its high strength-to-weight ratio and is often used in numerous applications, including aerospace, automotive, and sports equipment due to its lightweight properties. However, one significant drawback of carbon fiber is its high manufacturing cost. The production process of carbon fiber involves specialized materials and techniques, which can lead to higher expenses compared to alternatives like aluminum or plastic.

In terms of durability, carbon fiber is generally known for its robust performance and ability to withstand a fair amount of stress, making it less likely to be a common problem. Additionally, carbon fiber is lightweight, which is one of its main advantages, contradicting any association with heavy weight. While the manufacturing process can be complex and may present challenges, it is the cost that is more prominently cited as a common issue when discussing the material's utilization in various industries. Thus, high cost stands out as a fundamental concern in the adoption of carbon fiber for widespread use.