Hii I believe your option would be D. I hope it helps :)
.1 repeating - decimal
11% - percentage
Step 1:
Calculate the measure of angle ∠ABC
From the triangle in the question,
Step 2:
Calculate the value of AB using the cosine rule below
By substituting the values, we will have
Hence,
The distance of point A to point C is = 21.26km