Correct Answer - Option 2 : Internal sort
The correct answer is option 2:
Internal Sorting:
Sorting is achieved within the space allocated to load the input. No external memory is required.
External Sorting: Additional memory is required for performing sorting operations.
Distribution sort: The input is distributed among various processes or machines for sorting and later recollected at the output.
Radix sort: Performs the sorting by distributing input elements into buckets according to their radix.
