Which of the following software tools is considered a Fourth-Generation Programming Language?

Fourth-Generation Programming Languages (4GL) are designed to be more user-friendly than earlier programming languages, allowing developers to create programs more quickly and with less code. They focus on reducing the amount of programming required to perform tasks and are often more closely aligned with natural language than traditional programming languages.

PowerBuilder is recognized as a true 4GL because it provides a high-level interface for building applications, particularly with a strong emphasis on database interaction and user interface design. It allows developers to work with visual programming techniques, enabling them to develop database-driven applications without needing extensive coding. This capability exemplifies the primary characteristic of fourth-generation languages, which is to increase productivity and simplify the programming process.

In contrast, languages like Java and C++ are considered third-generation languages (3GL) that require more detailed coding and a deeper understanding of programming constructs. PASMO, being an assembler language, is primarily focused on low-level system operations and does not fit into the 4GL category.

Thus, PowerBuilder stands out as the correct answer, embodying the productivity and ease-of-use principles that define fourth-generation programming languages.