If organisms cluster around fissures in the ocean floor that leak hot, acidic water, then where do organisms cluster on the ocean floor?

Answer choices:
- neutralized water
 - where they used to live
 - hot alkaline water
 - fissures of hot, acidic water
 - sedimentary rocks
 - fissures blasting cold water
 - at or near the margins
 - an area swollen with pus

 

    fissures of hot, acidic water      