Select the appropriate correction to the following sentence: you shouldn’t pat a strange dog, sometimes they’re not friendly.

you shouldn’t pat a strange dog, “sometimes they’re not friendly.”
you should’nt pat a strange dog - sometimes theyre not friendly.
you shouldn’t pat a strange dog; sometimes they’re not friendly.
you shouldn’t pat a strange dog: sometimes, their not, friendly.

C: You shouldn´t pat a strange dog; sometimes they´re not friendly.

Explanation:

 The option C presents the appropriate correction for the sentence because it included a semicolon ( ; ) to separate the two independent clauses. The semicolon is being used instead a comma and conjunction, which could be  used as part of the explanation in the second clause: ",because sometimes they´re not friendly."

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.