Customer A faces which two main barriers to adoption with a 20-year-old meeting booking system?

The correct answer highlights the cultural barrier, which is significant when dealing with an outdated system that has been in place for two decades. A 20-year-old meeting booking system is likely deeply integrated into the organization’s culture and workflows, shaping employees' habits and attitudes toward technology. Users may be resistant to change due to a comfort level with the existing system, leading to a reluctance to adopt new tools or processes, even if they offer improvements.

In such cases, it’s also common for an organization to have a culture that does not prioritize innovation or change, which can further perpetuate the use of antiquated systems. Addressing these cultural factors is essential to facilitate successful adoption of new technologies, as overcoming resistance to change is often one of the biggest hurdles in the transition process.

While other barriers such as technical, process, and cost may also exist, they are not as directly related to the entrenched habits and beliefs within the organization fostered by long-term use of the existing meeting booking system.