Final Answer:
The availability of the map of IDs to the new versions of the sObject records in triggers is 4) Available in before update, after insert, and after update triggers.
Step-by-step explanation:
In Salesforce Apex Triggers:
Before Update Triggers: In these triggers, the map of IDs to the new versions of the sObject records is available before the records are updated in the database. Developers can access and manipulate the records before the changes are committed.
After Insert Triggers: After insert triggers are executed after records are inserted into the database. The map of IDs to the new versions of the sObject records is available in these triggers, allowing developers to work with the newly inserted records.
After Update Triggers: Similar to before update triggers, after update triggers provide access to the map of IDs to the new versions of the sObject records after the updates have been applied to the database.
Option 4 is the answer.