The message durability considerations that an Integration Architect should make when designing a solution to meet these business requirements are:

When subscribing to Salesforce Event bus, ReplayID is used with a value of -2 to be able to see old and new events.

High-volume event messages are stored for 72 hours (three days).

A Salesforce Event bus is a messaging service that allows you to publish and subscribe to events inSalesforce or from external sources. ReplayID is a property of an event message that indicates its position in the event stream. By using ReplayID with a value of -2, you can replay all events stored in the retention window, which can help you see the stages of order processing in Salesforce. High-volume event messages are a type of event message that can handle large volumes of data and are optimized for performance and scalability. High-volume event messages are stored for 72 hours (three days) in the event bus, which means they can be replayed within that time frame. The other options are not correct. Using ReplayID with a value of -1 means you can only see new events that are published after your subscription. High-volume event messages are not stored for 24 hours (one day), but for 72 hours (three days).