Final answer:
Executive Support Systems are the ones that deliver personalized business content through a Web portal interface, tailored for senior executives to assist with strategic decision-making.
Step-by-step explanation:
The system that is expected to deliver integrated, personalized business content through a Web portal interface is C. Executive Support Systems (ESS). Executive Support Systems are designed to provide senior executives easy access to internal and external information that is relevant to their strategic decisions. These systems typically present information in a highly summarized and graphical format that is personalized to the preferences and information needs of the individual executive. This differs from options A, B, and D, such as Management Information Systems which process data from company operations, Transaction Processing Systems that handle the collection, storage, and processing of business transactions, and Decision-Support Systems that provide interactive tools for analyzing data to make decisions.