Prem and Raju started walking from their house to reach their friend Ritika's house. Prem covered a distance of 2 km and Raju covered a distance of 4 km but they both took the same time. Which among the following statements is correct for the above situation?

• A. Raju covers a longer distance with a lower speed as compared to Prem.
• B. Prem covers a shorter distance with a higher speed as compared to Raju.
• C. Raju covers a longer distance with a higher speed as compared to Prem.
• D. All the above