Eli whitney introduced interchangeable parts in the manufacture of muskets. which of these was an effect of his innovation?
a: the use of interchangeable parts encouraged the end of slavery.
b: the use of interchangeable parts was applied to other industries.
c: whitney’s invention proved ineffective in dividing labor among unskilled workers.
d: although using interchangeable parts enabled the mass production of identical weapons, it proved unable to lower costs in other industries
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