On Tony’s map, the distance from Saint John, NB to St. John’s, NL is 21\:cm. The actual distance between these two cities is 1050\:km. What is the scale of Tony’s map?
Answer Choices
A. 1:50\:000
B. 1:200\:000
C. 1:500\:000
D. 1:2\:000\:000
E. 1:5\:000\:000