Who noow the answer i need this tomorow

Which of these innovations led to increased production in american factories in the early 1800s? a. the use of interchangeable parts b. the construction of canals c. the invention of the mechanical reaper d. the availability of electricity

I’m learning abt the manifest destiny and i don’t know who the people are in the picture can someone tell me who is on the left hand side, right hand side, the women in the center? ?

Which item in the list are methods a political party might influence public opinion