What output will the command $ seq 1 5 20 produce?

What output will the command $ seq 1 5 20 produce?

A.
1 6 11 16

B.
1 5 10 15

C.
1 2 3 4

D.
2 3 4 5

E.
5 10 15 20

Explanation:
From the man pages:
seq – seq [OPTION]… FIRST INCREMENT LAST
Print numbers from FIRST to LAST, in steps of INCREMENT.