SM3 U2bR3 End Behavior

Given 

Describe the end behavior of this function.

chooseleft up, right upleft down, right upleft down, right downleft up, right down 

Which graph would be the best pick for  chooseGraph AGraph BGraph CGraph DGraph EGraph Fnone of them 

Which graph would be the best pick for   chooseGraph AGraph BGraph CGraph DGraph EGraph Fnone of them

Using the given graph, decide if the leading coefficient is positive or negative, determine the degree of the polynomial, and determine the value of the last term. 

 choosex³-x³x⁴-x⁴  choose30-30