D

Explanation:
The correct answer is “D. 7, 14, 21, 22, 26, 30.” An array refers to a sequence of data points ordered in a specific, logical way, typically in ascending or descending order. The only list that follows an ascending order is option D, making it the array.

Run-down:
An array is a structured arrangement of data in a specific order, which is important in data analysis for identifying trends and patterns. Here, the data points are arranged in ascending order, thus forming an array.