Here's a problem to solve: Black fur is dominant to white fur in guinea pigs. If two black guinea pigs (Bb) are crossed, what color will the fur of their offspring be?

Among the 4 following options, which is the correct answer?

- A: 100% black
 
- B: 100% white
 
- C: 50% black, 50% white
 
- D: 75% black, 25% white
 