Software frameworks typically contain considerable housekeeping and utility code in order to help bootstrap user applications, but generally focus on specific problem domains. Struts framework addresses which of the following problem domain ?

Option C is correct because Apache Struts is a web application framework for Java - it specifically addresses the domain of building web-based applications and follows the Model-View-Controller (MVC) pattern. Options A (compilers), B (decision support systems), and D (middleware) are different problem domains that Struts is not designed to solve. Struts provides utilities for handling HTTP requests, managing form data, and organizing web application logic.