Answer:
Option B, Decrease the amount of animal waste that reaches the water supply
Step-by-step explanation:
Fecal coliform are the microorganism that are facultatively anaerobic ( can survive in anaerobic condition) and originate, grow and survive in fecal waste of all warm-blooded animals.
Fecal coliform basically originate from the intestines of warm-blooded animals and hence found in their excreta.
Thus, all animal waste is a form of fecal and therefore its flow to the water supplies can cause the infection in water. Therefore it must be controlled.
Hence, option B is correct