Answer:
C. 38
Explanation:
When you add them all together you get 36.55 ft, getting rid of choices A and B cause thats too little wood, leaving both C and D. Both answers could be correct if it didnt say to get the closest estimate, which would be 38, because 38 ft is closer to 36.55 ft than 40 ft. Dont forget to add your unit of measurement!