Final answer:
Aspartic acid has four carbons in its chain, while glutamic acid has three carbons.
Step-by-step explanation:
Aspartic acid and glutamic acid are both amino acids that have a carbon chain.
The chain in aspartic acid contains four carbons, while the chain in glutamic acid contains three carbons.
Therefore, the correct answer is D) Four for aspartic acid and C) Three for glutamic acid.