Which of the following are likely to lower a country's human development index? (4 points) 1. A civil war
II. Communism
III. Free trade
IV. National debt
a. I and 11
b. I and III
c. I and IV
d. II and III
X e. Il and IV

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.