Tell whether the sequence is arithmetic. If it is, what is the common difference?

9, 14, 20, 27,,....
What is the common difference?(1 point)
Responses

The common difference is 7
The common difference is 7

The common difference is 8
The common difference is 8

The common difference is 6
The common difference is 6

The common difference is 9
The common difference is 9

The common difference is 5
The common difference is 5

The common difference is 10
The common difference is 10

There is no common difference.

The common difference is 6