Which Cow to Keep for Breeding?

Characteristics of the Cows:

First Cow: larger male with a wild temperament

Second Cow: smaller female who produced a great deal of milk

Third Cow: larger female who was often sick

Fourth Cow: larger male with a docile personality

Reasoning:

In the scenario provided, the second cow is a smaller female who produces a great deal of milk, which is essential for breeding purposes. Milk production is an important factor in selecting cows for breeding as it indicates their reproductive health and ability to provide for offspring. Additionally, the fourth cow is a larger male with a docile personality, which can be beneficial in terms of handling and managing the cow for breeding purposes.

Therefore, based on the characteristics provided, the second cow and the fourth cow are the best options to be kept and bred for productive purposes.