Which ONE of the following statements about the railway lines of Africa is false?

• A There is no trans-continental railway in Africa which can be compared with the Trans-Siberian Railway in length or importance
• B Africa's railway lines are all of uniform gauge
• C Few railway lines in Africa cross from one country to another
• D The railway lines of Africa generally run from the coast inland
• E The densest railway network in Africa is in the Republic of South Africa