A physical database design decision must be made carefully because of impacts on:

Explanation

(a) Data accessibility is impacted by physical database design decisions. The way data is stored and organized can affect how easily users can retrieve it. For example, if data is spread out across multiple tables or files, it can be more difficult to access than if it is stored in a central location.(b) Response times are also impacted by physical database design decisions. The way data is stored and indexed can affect how quickly queries can be executed. For example, if data is not properly indexed, it can take longer to find specific records.(c) Security is another important consideration in physical database design. The way data is stored and accessed needs to be designed to prevent unauthorized access or modification. For example, user permissions and encryption can be used to help secure data.Therefore, all of these factors (data accessibility, response times, and security) are important to consider when making physical database design decisions.