Final answer:
Audie Murphy is the most decorated U.S. war hero who bravely took on German machine gunners during WW1, known for his remarkable acts of valor.
Step-by-step explanation:
The most decorated U.S. war hero who bravely took on German machine gunners during WW1 is Audie Murphy. Option c) Audie Murphy is the correct answer to the question. Audie Murphy is best known for his heroism during World War II, where his actions earned him every military combat award for valor available from the U.S. Army, as well as French and Belgian awards for heroism. At the age of 19, Murphy single-handedly held off an entire company of German soldiers for an hour at the Colmar Pocket in France in January 1945 and then led a successful counterattack while wounded and out of ammunition.