What is a disadvantage of diversification?

The correct answer highlights a significant challenge that businesses may face when they diversify. When a company enters a new market or introduces new products, it often lacks the necessary knowledge and expertise that it has developed in its original domain. This gap can lead to poor decision-making or misaligned strategies, as the company may not fully understand the dynamics, customer preferences, or competitive landscape of the new market.

On the other hand, increased market awareness can be a positive outcome of diversification, as businesses may gain insights into different consumer behaviors and trends. Overextension of brand identity can also be a concern, but it speaks to potential brand dilution rather than the foundational issue of knowledge gaps. Additionally, lower cost production might be a benefit of diversification if economies of scale are achieved, but it does not directly address the disadvantages associated with a lack of expertise.

Thus, the lack of knowledge and expertise in the new market serves as a clear and relevant disadvantage of diversification that can hinder a company's ability to succeed in new ventures.