**Correct Answer: A. Create an owner-based sharing rule to grant access to account records, that have the same segment, to all sales-manager roles.**

### Explanation

The issue arises because **Role Hierarchy is based on countries**, so a U.S. sales manager is *not* above or equal to a Canadian sales manager in the hierarchy. That means they will **not** get visibility into Canadian accounts through roles alone, even if the accounts share the same business segment.

To enable visibility **across countries but within the same segment**, you need **criteria-based or owner-based sharing rules** that grant Read access horizontally across roles.

Let’s analyze the choices:

| Option | Analysis |
| ------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **A. Owner-based sharing rule** | ✔ **Correct**. Sharing rules allow sharing *across* role hierarchy branches—exactly what is needed. You can share accounts owned by Canadian segment teams with U.S. sales-manager roles, and vice-versa. |
| **B. Public group + permission set** | ❌ **Incorrect.** Permission sets do not grant record-level access. A public group is fine, but permission sets only give object-level permissions. They cannot open up record visibility. |
| **C. Change the Role Hierarchy** | ❌ **Incorrect.** Putting all sales managers in one role breaks the design and removes country-based hierarchical separation. It may also unintentionally expose more records than intended. Not recommended. |

### Why Sharing Rules Are the Proper Solution

* They grant **lateral** acc...