Which is a correctly punctuated complex sentence? a.the girl ran across the street and got the mail. b.the girl ran across the street, and she got the mail c.the girl ran across the street because she wanted to get the mail. d. the girl ran across the street, got the mail, and returned to the home.

The Riddle of the Great Sphinx

Explanation: As per the greek legend, there was a Sphinx eating people who could not answer the riddle correctly: "What is the creature that walks on four legs in the morning, two legs at noon and three in the evening?". The answer to it is "the man" because when he is a baby he would crawl on all fours, then when the man learns how to walk he does it on two legs and finally on three when the man is old and needs a cane to walk. The hero Oedipus answered correctly and the Sphinx was killed.