What is the advantage of using 2D jagged array over 2D rectangular array?

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Question

What is the advantage of using 2D jagged array over 2D rectangular array?

Options:

A . Easy initialization of elements

B . Allows unlimited elements as well as rows which had '0' or are empty in nature

C . All of the mentioned

D . None of the mentioned

Answer: Option B

In many applications where 2 dimensional arrays are used,not all rows need to have all the elements i.e they are sparse.Many rows have 0 elements.In such cases it is better to use 2D jagged arrays as they allow unequal number of elements in each row and also allow for empty
rows.

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