Respuesta :

B is an arithmetic sequence.

All other answer choices are being multiplied by a certain number, whereas B is subtracting 7 each time.

Answer:

B) -20, -27, -34, -41, -48, ...

Step-by-step explanation:

An arithmetic sequence is a sequence in which each term is found by adding a constant to the previous term.

In sequence B, each term is found by adding -7 to each previous term.  This is arithmetic.