What are the two literary influences on hamlet?

Hamlet is one of the most-quoted works in the English language, and often included on lists of the world's greatest literature. As such, it has proved a pervasive influence in literature. For instance, Henry Fielding's Tom Jones, published about 1749, merely describes a visit to Hamlet by Tom Jones and Mr Partridge.

tree and the cat in the tree

i think it may be b, i'm not exactly too sure on this. but b seems to make more sense.