Why do you think that homer's epics played a very important role in the culture of the classical greeks?
a people memorized parts of his poems in school, and they quoted him in everyday language.
b people weren't sure if homer was a real man or several men from history.
c we still learn about his poetry in school today.

B: People weren't sure if Homer was a real man or several men from history.

Isay b but i'm not sure. 

Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.