Explanation:
a. All macromolecules are joined by ionic bonds.  Χ. mostly covalent Â
c. All macromolecules are both hydrophobic and hydrophilic. Χ. not all
d. All macromolecules contain genetic information. Χ. only nucleic acid does.
The following are examples of macromolecules and the monomers they are made from: