When is the VARIANT data type suitable when using semi-structured data?

When there is a need for a predefined schema which cannot be changed after it is created.

When there is a need to add or modify elements within the data structure without interrupting the session.

When the data set is huge and the order of the data elements in the data set does not change.

When the data contains nested data structures like JSON or XML.

When the data consists of images and videos.