Which of the following is punctuated correctly?
My brothers were born on September 17, 1949, December 7, 1951, and December 31, 1953.
My brothers were born on: September 17, 1949, December 7, 1951 and December 31, 1953.
My brothers were born on September 17, 1949; December 7, 1951; and December 31, 1953.
My brothers were born on September 17, 1949: December 7, 1951: and December 31, 1953