What statement about antibody is true? a it is a carb molecule b it is only found in the human body c it is target specific d it is formed by covalently linking 3 peptides together

The correct answer option is C. They are target specific.

Explanation:

We are to determine whether which of the given statements is true about antibody.

Antibodies are a type of proteins which are present in the body to defend the foreign attacks that are in the form of antigens.  

These proteins have a basic structure which consists of two pairs of polypeptide chains that are linked covalently via disulfide bonds.

Each antibody recognises one specific antigen and this feature is called as antibody specificity.

i think the answer would d

the answer is sex-linked recessive.