Which sentence is punctuated correctly?
a. three important dates in u. s. history are july 4, 1776, april 9, 1865, and september 11, 2001.
b. three important dates in u. s. history are july 4; 1776; april 9; 1865; and september 11; 2001.
c. three important dates in u. s. history are july 4, 1776; april 9, 1865; and september 11, 2001.
d. three important dates in u. s. history are july 4; 1776, april 9; 1865, and september 11; 2001.

Which kind of narrator knows the thoughts and see all of the charters in the story

Which words in this excerpt from the count of monte cristo can be used as synonyms to determine the meaning of the word grotto? dant? s entered the second grotto. the second grotto was lower and more gloomy than the first; the air that could only enter by the newly formed opening had the mephitic smell dant? s was surprised not to find in the outer cavern. he waited in order to allow pure air to displace the foul atmosphere, and then went on. 1. air 2. opening 3. mephitic 4. cavern 5. pure 6. atmosphere

What did mark twain contribute to the history of the novel? select all that apply.