Which answer best completes the sentence?
in the to the coast of mexico.
following year cortes had to return,
following, year cortes had to return
following, year cortes had to, return
following year, cortes had to return

The correct way to complete this sentence is

In the following year, Cortes had to return to the coast of Mexico.

*When we use time phrases either if they are adverbial, conjunctions, etc... we have to use a comma right after it. The only option that has that structure is the fourth one.

i think the answer is d.

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.