What is the difference between ionic bonds and covalent bonds, and which type is more common in biomolecules?

What is the difference between ionic bonds and covalent bonds, and which type is more common in biomolecules?

• A. Ionic bonds form from electrostatic attraction between oppositely charged ions; covalent bonds involve sharing electron pairs. Covalent bonds are more common in biomolecules.
• B. Covalent bonds form from electrostatic attraction between oppositely charged ions; Ionic bonds involve sharing electron pairs; Covalent bonds are more common in biomolecules.
• C. Ionic bonds form from electrostatic attraction between oppositely charged ions; covalent bonds involve sharing electron pairs. Ionic bonds are more common in biomolecules.
• D. Covalent bonds form between ions in a lattice; Ionic bonds involve electron sharing; Covalent bonds are more common in biomolecules.

Answer: (A)