Which of the following are part of the ABAP development guidelines?

The choice focusing on improved tools for performance analysis aligns well with the ABAP development guidelines due to the emphasis on optimizing performance in ABAP applications, especially when interacting with SAP HANA. Performance analysis tools are essential in identifying bottlenecks and ensuring that ABAP programs run efficiently in a HANA environment, which leverages in-memory processing capabilities.

Utilizing such tools enhances the overall development process, allowing developers to write optimized code by providing insights into how their applications function during execution. This focus on performance is particularly relevant as systems become more complex and demand more from programming environments.

While consuming only ABAP contents for SAP HANA, improved hybrid components for SAP HANA, and extensions to the ABAP language are important considerations in the broader context of development for SAP HANA, they do not directly reflect the core performance-oriented nature of the ABAP development guidelines in the same way that improved tools for performance analysis do. Performance optimization stands out as a critical aspect, reflecting best practices for effective ABAP development.