D. research towards preventing and curing disease.
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Answer:
Cotton and Tobacco
Explanation:
It was the most poular prouducts back in that time
Answer:
b. did not initially cover all categories of workers.
Explanation:
The American Social Security System was very different from what we know today, in its early years of establishment, during the New Deal. The main difference was that it did not cover all professional categories (which made it different from the European pension system). Professional categories were included in this system as the US economic condition strengthened through other New Deal reforms. This happened little by little, until it became what we know today.
