Who was the supreme allied commander in europe during world war ii?

Dwight Eisenhower

Explanation:

Dwight Eisenhower was the Supreme Allied commander of the ww2 allied war effort starting in 1943

d. it adversely affected american productivity

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.