Why are breast-fed babies less likely to contract infectious diseases than bottle-fed babies?

A) They are less likely to come in contact with viruses and bacteria.
B) Breasts are more sterile than bottles.
C) Breast milk contains antibodies.
D) Most breast-fed babies don't leave the home often.

Infectious Diseases

Diseases caused by pathogenic microorganisms, such as bacteria, viruses, parasites or fungi, that can be spread, directly or indirectly, from one person to another.

Antibodies

Proteins produced by the immune system in response to foreign substances, known as antigens, to neutralize or destroy them.