According to the uploaded Master Study Guide, the correct answer is B. Up to 10. The source specifically presents an Unlimited Edition Salesforce org and keys the dynamic-dashboard limit as ten.
This item is primarily testing a Salesforce platform limit rather than a general UX design principle. The UX context is that dynamic dashboards can improve the experience by allowing dashboard information to be presented in a way relevant to the viewing user, but their use is constrained by the platform limits represented in the study material.
Option A, up to 50, is not the value provided by the study guide. Option C assumes that an Unlimited Edition license means every feature is literally unlimited; the source explicitly rejects that assumption by providing a finite dashboard limit.
For certification purposes, the important point is to distinguish the edition name from individual feature entitlements or limits. “Unlimited Edition” does not mean that every configurable Salesforce resource has no limit.
Because this batch is being answered from the supplied study guide, 10 is the answer supported by that source.
Study Guide reference/topics: Dynamic Dashboards, Salesforce limits, Unlimited Edition, Declarative Design.
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