Which relationship most likely reflects correlation but no causation

Question

A. Having all the light on in your house is associated with a higher electric bill.
B. Washing laundry more often is associated with using more water.
C. Vacuuming living room carpets more often is associated with having cleaner bathrooms.
D. Dusting the furniture more often is associated with having shinier furniture.

Answer 1

D. Dusting the furniture more often is associated with having shinier furniture.