It’s child psychology assignment Plz help me fast (thank you)

#4 According to Piaget, what achievement is it that brings the
sensory motor period to a conclusion? Why did he consider it so important?
#5 Who were the primary subjects of Piaget's studies on infant
development? What are some of the advantages and disadvantages of his choice?

invention of the washing machine

in the past, people used sticks and stones or scrub boards to clean their clothing. as it was sweaty, backbreaking work, we owe a world of to james king because he created the model for the modern washing machine in 1851. the most important issue was that this machine cleaned clothes while a person cranked the handle. doing this made people who used it develop strong muscles in their arms. later, in 1908, alva j. fisher created an electric washing machine named thor. this one was not the first automatic washing machine. however, it was one of the most popular models at the time.

my best guess would be: d allusion

makes the most sense

i’m pretty sure it is the second

it should be

hard work gives a person a sense of satisfaction; likewise, it to pay the bills.

so the punctuation is not correct.