Which database design provides flexible schemas for the storage and retrieval of data beyond traditional table structures?

A. Relational
B. Transactional
C. SQL

D. NoSQL

Explanation:
NoSQL, which stands for “not only SQL,” is an approach to database design that provides flexible schemas for the storage and retrieval of data beyond the traditional table structures found in relational databases.

Reference: https://www.ibm.com/cloud/learn/nosql-databases