Identifying population trends by location over two years

Steps:

• Review population data for X, Y, Z in year 1 compared to the prior period to identify rises.
• Review population data for X, Y, Z in year 2 compared to year 1 to identify falls.
• Match locations showing both a year 1 rise and year 2 fall.
• Confirm only Y satisfies both conditions based on the data.

Why D is correct:

• Option D specifies Y only, which aligns with the definition of a rise (increase from prior to year 1) followed by a fall (decrease from year 1 to year 2), as per standard trend analysis.

Why the others are wrong:

• A: X and Z both fail to show a year 2 fall.
• B: X shows a year 1 rise but no year 2 fall.
• C: Y qualifies, but Z lacks a year 1 rise.

Final answer: D