A person covered a distance of 250 km at a certain speed. If his speed is 20% less, he would have covered the same distance in \(1\frac{1}{4}\) hours less time. His speed (in km/hr), initially was:

• A. 45
• B. 50
• C. 52\(\frac{1}{2}\)
• D. 47\(\frac{1}{2}\)