why does the mona lisa represent the renaissance

2 answers

why do you think? It was painted by a great master, during the Renaissance. It's a famous painting of that period, typical of the style then.
"The style of painting, sculpture and decorative arts identified with the Renaissance emerged in Italy in the late 14th century..."
http://www.history.com/topics/renaissance-art

This was painted in the very early 1500s by Leonardo da Vinci, before the whole series of concepts that make up what we call the Renaissance reached France, England, or other European countries. This painting is not related to anything religious, as were nearly all Medieval works. A non-religious subject is one of the marks of many (but not all) Renaissance paintings.

Now ... how will you phrase your answer?