1 prodigy 2 speculate this is all i could get I am so sorry. :<
Factors exogenous to a country's current level of income are identified as being responsible for some 84% of the increase in life expectancy during the period. ... But neither country's mortality has been directly affected by its own income; the effect shows up as a shift in the curve.
Answer:
I think it's the third option
Because when someone memorizes something, it is most likely going to be hard to memorize, and when he or she accomplishes it he/she feels that they did something great, and since it is a famous speech, that means that what he memorized is important.
