The study guide identifies A. Run the Salesforce Optimizer App to identify fields not in use as the correct answer. The scenario presents two related UX problems: the Contact page contains too many irrelevant fields, and users experience long page-load times. The selected approach begins by identifying which configuration elements are no longer providing value.
Using Salesforce Optimizer gives the organization evidence about unnecessary or underused configuration so that administrators can make informed decisions about simplifying the experience. This is stronger than merely relocating unused information.
Option B does not actually solve the underlying problem. Moving unused fields to another section still leaves those fields in the interface and can retain unnecessary page complexity.
Option C, In-App Guidance, could help explain where important fields are located, but it would layer guidance on top of an already cluttered experience rather than addressing the clutter itself.
The UX implication is that unnecessary interface elements should be evaluated and removed rather than simply documented or rearranged. A cleaner Contact experience can make relevant sales information easier to find while reducing the amount of configuration presented on the page.
Study Guide reference/topics: Salesforce Optimizer, page simplification, unused fields, Sales Cloud UX, Declarative Design.
==================================
