Question

The parks commission of a city wants to survey citizens to determine their attitudes toward spending money to upgrade the city's parks.

Which survey method is least likely to give a biased result?

A.
The commissioners go to a local park and survey people there.

B.
The commissioners go to neighborhoods where there are parks and survey the residents there.

C.
The commissioners survey a group of citizens whose names are selected randomly by a computer program.

D.
The commissioners go to neighborhoods where there are no parks and survey the residents there.