Which of the following most significantly determines a communities’ access to potable water?
a. access to clean raw water sources
b. the availability of money
c. local droughtconditions
d. the level of industrial development

a. access to clean raw water sources

Explanation:

The most significant determinant is the easy access to clean water source.The easy access to the source is the main factor that affect clean water availability.

The best rock that confines clean water are basement  complex. This rocks are free from impurities. The  ground water may be confined or unconfined.

The availability of money can also improve access but the money will only be used to increase labor and expertise.

The local drought conditions might not affect ground water availability.

The level of industrial development is not the most significant to determine access to potable water.