Is water a renewable or non-renewable resource?

a. clean water enters the earth system from rainfall and replenishes much faster than it is used, so it's renewable.

b. water can be filtered for reuse, and cycles through earth in the hydrologic cycle, so it is renewable.

c. there is so much fresh clean water on earth that humans will never be able to use all of it, so it is non-renewable.

d. we cannot clean water effectively when it is polluted, so it is completely non-renewable.

i think it's b but let me know