A 15 m tall house on the bank of a river is facing a chimney directly opposite to it on the other bank. The angle of depression from the roof of the house to the base of the base of the chimney is 30 degree and the angle of elevation from the base of the house to the top of the chimney is 60 degree. Find the approximate width of the river and the height of the chimney.

• A. 24 m and 47 m
• B. 20 m and 25 m
• C. 25 m and 41 m
• D. 26 m and 45 m