Find the points of inflection and discuss the concavity of t

Find the points of inflection and discuss the concavity of the function.

	A.	inflection point at $\"Find$ ; concave upward on $\"Find$ ; concave downward on $\"Find$
	B.	inflection point at $\"Find$ ; concare downward on $\"Find$ ; concave upward on $\"Find$
	C.	inflection point at $\"Find$ ; concave downward on $\"Find$ ; concave upward on $\"Find$
	D.	inflection point at $\"Find$ ; concave upward on $\"Find$ ; concave downward on $\"Find$
	E.	inflection point at $\"Find$ ; concave downward on $\"Find$ ; concave upward on $\"Find$ please if you dont no the answer dont anwer it. Experts only!

wher eis the function