Read the sentence. mexican culture is a mixture of native american north american and spanish influences. what answer shows proper comma usage?
(a) mexican culture is a mixture, of native american north american and spanish influences.
(b) mexican culture is a mixture of native american, north american, and spanish influences.
(c) mexican culture is a mixsture of native american north american, and spanish influences.
(d) mexican culture is a mix of native american, north american and, spanish influnces.

The answer that shows proper comma usage is (B) Mexican culture is a mixture of native american, north american, and spanish influences.

Explanation: The rules of comma usage indicate that it is correct using commas to separate items or elements in a series. Moreover, they also establish that it is correct adding a comma before a coordinating conjunction. In that way, the answer that shows proper comma usage is B. ("Mexican culture is a mixture of native american, north american, and spanish influences") because it separates the different elements (native american, north american and spanish influences) by means of commas and it includes a comma before the coordinating conjunction "and".

because each is self-sufficient.  

the servant does not kill the child oedipus as he was ordered to do because "he pitied the child" based on the oedipus rex story. the servant was ordered to kill the child because of the prophecy that predicted king laius' death. the king already had attempted to hurt oedipus by piercing oedipus's ankle. however, the servant did not finish the job and he rather saved the baby oedipus.

explanation: