Since Greenwich, England is on the prime meridian, which of the following is a line of longitude that would be found in North America? a. 45° N c. 30° S b. 70° E d. 100° W

The correct answer is d. 100° W

Longitudes are east and west so it's not A and C since A and C show northern and southern points which are used when looking at latitude. B shows east which means going towards Europe while West means going towards the North and South America.