Which of the following is an arithmetic sequence?

A. - 7/11, 6/11, - 5/11, 4/11 ...

B. - 3/4, - 3/5, - 3/6, 3/7 ...

C. 1/2, 2, 7/2, 5

D. 3/4, - 3/2, 3, - 6

C

Step-by-step explanation:

an arithmetic sequence is a sequence in which you use addition/subtraction in order to achieve each term. Choice A alternates between the negative and positive therefore you can tell that it's multiplying each time, and the same goes for D, those two are incorrect. B is incorrect because you cannot add/subtract a number each time to get the next term. C, if you attempt to find the difference between in each term in choice C you will succeed and find that each time you add 3/2 each time to get the next term.