Which sentence below uses transition words?

Question 8 options:

A:This law is strictly enforced; to do anything, one must have a special permit, and for every such permit he must pay roundly.


B:It is a well-known fact that many claims on Eldorado, Hunker, and Bonanza Creeks have turned out hundreds of thousands of dollars.


C:As to the entire yield of gold from the Klondike Creeks, none can say except approximately.


D:One half of all mining land is reserved for he crown. However, a quarter or more is gobbled by corrupt officials.