2. Which of the following describes the 'sapping' method of building a trench? a. Building a trench by digging straight into the ground
b. Building a new trench by extending one end of an existing trench
c. Building a trench by making a tunnel first
d. All of the above
e. None of the above

Which answer best describes the u.s. national road? it ran from atlanta to baltimore and followed the railroad. it ran from new york to chicago and was made from wooden planks. it ran from massachusetts to ohio and ran parallel to the canal system. it ran from maryland to illinois and was made using macadam construction.