Final answer:
The common difference calculator for an arithmetic sequence is A. Arithmetic sequence.
Step-by-step explanation:
The correct answer is A. Arithmetic sequence.
An arithmetic sequence is a sequence of numbers in which the difference between consecutive terms is constant. The constant difference is called the common difference. To find the common difference of an arithmetic sequence, you can subtract any term from its previous term. The result will be the same for all pairs of consecutive terms.
For example, let's say we have the arithmetic sequence: 2, 5, 8, 11, 14. To find the common difference, we can subtract any term from its previous term. If we subtract 5 from 8, we get 3. If we subtract 8 from 11, we again get 3. Therefore, the common difference of this sequence is 3.