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

19, 12, 5, negative 2
(1 point)
Responses

No
No

Yes; one-seventh
Yes; Image with alt text: one-seventh

Yes; 7
Yes; 7

Yes; negative 7

retareded ai

Yes; negative 7

No

im confused, which one is it

whats the answer