Answer:
B. functional combatant commands
Explanation:
The functional combatant commands of the United States military is comprised of the U.S. Transportation Command, U.S. Special Operations Command, and U.S. Strategic Command.
Andy displays a Duchenne smile which is believed to be the true smile of happiness while Brad has used a fake smile because it did not involve his eyes but he only smiles using his mouth.
12. is answer B
13. is answer A