Universal Containers has a requirement to store more than 100 million records in salesforce and needs to create a custom big object to support this…

To build a custom big object to support storing more than 100 million records in Salesforce, a data

architect should use Metadata API or Big Object in setup. Metadata API is an API that allows

developers to create, retrieve, update, or delete metadata components in Salesforce

programmatically. Big Object in setup is a user interface that allows admins to create big objects

declaratively without writing code. Both tools can be used to define custom big objects and their

fields, indexes, and relationships in Salesforce. Option A is incorrect because DX (Developer

Experience) is a set of tools that allows developers to create and manage applications on Salesforce

Platform, but it does not support creating big objects directly. Option D is incorrect because Object

Manager in setup is a user interface that allows admins to create and manage standard and custom

objects in Salesforce, but it does not support creating big objects declaratively.