Read the following context and choose the best option to answer the question.
Context: There were only 2 brief water crossings , but enough rock outcroppings to keep you dry if you did n't slip and fall in . The race finally came back out on the road for the the last half mile before heading once again into the woods for the final assault on the 2 hills before the finish . I crossed in 2:27:30.Even though this was a technically difficult run , it was also a very enjoyable and challenging run . The trails were extremely well marked , the aid stations were well placed and supplied , beer at 9.2 miles and 10.4 .
Question: Where was I racing ?
Options: 
A. I was racing along the water on a beach .
B. I was racing in a valley between hills .
C. I was racing near a   train station .
D. I was racing in nature .


D