Which sentence demonstrates correct punctuation?
A.
Kaylie told Martza that she needed: to wash the dishes, and finish vacuuming the den.
B.
Dakhim wrote to the librarian; he wanted to express his appreciation for her hard work.
C.
While babysitting for the Andersons, Chris wrote a paper and she finished her book.
D.
Vladimir and Nadya traveled to Siberia on January, 1 to visit their aunt, and uncle.