It depends on the year. But most likey D, slaves.
Answer:
Surface Area = 2 × 5 × 3 + 2 × 12 × 5 + 2 × 3 × 12 = 222.
The surface area of this box is 222.
Formula for speed of light is:

Where:
c=speed of light = 300000 km/s
d=distance
t =time
Rearranging formula for t and calculating: