C should be the correct answer
The factor that effects the maximum range is Altitude
Americans began to wonder if they could win the war. During the beginning of the war, morale amongst Americans was generally high and accepted a quick victory against the Viet Cong. As time went on however, fighting in the unknown terrain of Vietnam against an enemy who had no true uniform and blended in with the locals made fighting very difficult which prolonged the war. In 1968, the Viet Cong launched a nationwide surprise attack in cities, in the countryside, by splinter groups who all coordinated assaults in South Vietnam known as the Tet Offensive. The attack was a failure for the Viet Cong, but for the Americans to see the size and scope of the surprise attack in areas originally thought to be under US and South Vietnamese control was a psychological blow for the American military. They soon realized that fighting an enemy who they could not identify regardless of the hostile or friendly terrain eventually influenced the Americans decision to pull out of the war in 1973.
Answer:
A (As far as my knowledge goes, I might be wrong)
Explanation:
A. Trade was increased, so this is the right answer
B. The European Christians did not win the Holy Land from the Muslims, so this is the wrong answer
C. Although art and music was inspired by the Crusades, it's subjective, and I'm assuming this isn't multiple choice.
D. The crusades was a fight over religion, this isn't even possible
C. Alcohol consumption decreased but did not entirely stop
because, even though alcohol was banned people still sold alcohol in what we call speakeasies sold illegal alcohol
