Final answer:
The prime meridian, at 0 degrees longitude, passes through the Royal Observatory in Greenwich, England.
Step-by-step explanation:
The prime meridian is defined as the imaginary line at 0 degrees longitude that passes through the Royal Observatory in Greenwich, England. This line divides the Earth into the Eastern and Western Hemispheres and serves as the reference point for measuring longitude around the globe. The prime meridian, which for historical reasons is situated at the observatory, is also an iconic geographical landmark where tourists often have their photos taken while standing with a foot in each hemisphere. The correct answer to the question of which location the prime meridian passes through is d. Greenwich, England.