Abdu is a florist who changes his workforce daily depending on the job. On Monday, 4 workers produced 28 flower arrangements. On Wednesday, 6 workers produced 42 arrangements. On Friday, 8 workers produced 56 arrangements. Assuming Abdu follows a similar pattern on the other days of the week, what is the likely rate of change in number of arrangements produced between Tuesday and Thursday?

A.
There is not enough information.
B.
2 arrangements per worker
C.
14 arrangements per worker
D.
7 arrangements per worker