When the following data is arranged as an array(in ascending order), we get:
14, 18, 4, 18, 5, 6, 18, 6, 18
4, 5, 6, 6, 14, 18, 18, 18, 18
If the given data is arranged in ascending or descending order of their magnitudes, it is called arrayed data, or simply, an array.
The given data, when arranged in ascending order, we get the following array:
4, 5, 6, 6, 14, 18, 18, 18, 18
Hence option (b) is the right one.