Are you looking for a specific word? The answer is border but I see you've included this in your question so I believe you do not understand the concept.
The correct answer is C. Medicine.
Dr. DeBakey was a well known cardiac surgeon. This means that he worked on the heart constantly during his operations. One of his crowning accomplishments was his help in developing the idea of a MASH. MASH (Mobile Army Surgical Hospital) was a medical unit used during World War II that served as a fully functioning hospital in combat areas. This helped soldiers to receive quicker medical attention after suffering injuries.
The Bronze Age is a time period that shows the ability of ancient cultures to create weapons and artifacts made from copper and bronze. This time period falls in between the Stone Age and the Iron Age. Its significance relies in its advancements it provided for civilization.
He attacked those who were communists, he attempted to rid communists from prominent positions and accuse government officials of this.
