______ are proteins that bind to foreign proteins which invade the body.Multiple choice question.BuffersHormonesEnzymesAntibodies

The correct answer is Antibodies.

Explanation

Antibodies are specialized proteins produced by the immune system in response to foreign substances known as antigens, which can include bacteria, viruses, and other pathogens. They specifically recognize and bind to these foreign proteins, facilitating their neutralization or destruction. Each antibody is unique and tailored to bind to a specific antigen, making them crucial components of the adaptive immune response. The other options — buffers, hormones, and enzymes — serve different biological functions: buffers help maintain pH levels, hormones act as signaling molecules, and enzymes catalyze biochemical reactions.