E1F04:

[97.3]

Which of the following geographic descriptions approximately describes "Line A"?

  1. A line roughly parallel to and south of the border between the U.S. and Canada
  2. A line roughly parallel to and west of the U.S. Atlantic coastline
  3. A line roughly parallel to and north of the border between the U.S. and Mexico
  4. A line roughly parallel to and east of the U.S. Pacific coastline