Question

city planners who want to know where to put such services as schools and playgrounds need data about which of the following?

○ race/ethnicity

○ marital status

○ gender

○ region

Explanation:

To determine where to place services like schools and playgrounds, city planners need data on the distribution of people across areas. "Region" (or population distribution by area) is relevant as it shows where families/children are located. Race/ethnicity, marital status, and gender don't directly relate to spatial distribution for service placement.

Answer:

region (assuming the last option is labeled as such; if options are as given, the correct option is the one with "region")