I believe c is the correct answer.
Answer:
negative externality
Explanation:
In simple words, negative externality refers to the loss that an unrelated third party experiences due to any economic transaction that occurs between the other two independent entities.
Under this concept the two parties do not deliberately effect the third party and generally that third party do not get any chance to tackle the loss before it actually happens. Diseases happening to general public due to pollution by factories is the prime example of negative externality.
Answer: In between two and a half to three times per day usually
Explanation:
Cows milked automatically are often milked between two and a half and three times per day, but that varies from two to four times per day depending on the lactation period of the cow. Changing from milking twice a day to milking three times a day has a marked increase in milk production.
