What is a two-dimensional array?

A two-dimensional array is essentially an array of arrays, structured in a way that allows for the organization of data into rows and columns. This format is particularly useful in various programming scenarios such as representing matrices, grids, or tables where you need to store data in a sheet-like format. Each element within this two-dimensional array can be accessed using two indices: one representing the row and the other representing the column.

This structure enables efficient data organization and retrieval, making it a fundamental concept in data handling, algorithms, and software design. The ability to represent complex data relationships in a structured manner distinguishes it from simpler data structures, such as one-dimensional arrays, where data is organized in a linear format without any explicit row or column configuration.

In contrast, other options describe arrays with different characteristics or limitations. A single dimension doesn't utilize the additional complexity and usefulness of rows and columns, a list of arrays may lack the structured access that a two-dimensional array provides, and although arrays with more than one dimension can be broader in scope, they do not specify the row and column organization that defines a two-dimensional array specifically.