A new dog breed is less likely to cause an allergic reaction in humans. Which statement explains how artificial selection led to the development of this desirable trait? Different dogs were bred with other animal species such as cats to introduce new nonallergic traits to obtain the new dog breed.

Different dogs were bred with other animal species such as cats to introduce new nonallergic traits to obtain the new dog breed.

Different dog breeds were chosen for nonallergic traits and bred with each other to obtain the new dog breed.

Dogs were trained over generations to not produce and release proteins that cause allergic reactions in humans to obtain the new dog breed.

Dogs were kept outdoors over generations to build up a natural defense against allergens in the environment to obtain the new dog breed.