Which of the following are true? I If we sketch the graph of the function f(*) = e" on its entire domain (-co, co ), it has no relative maximum or minimum points Il Relative extrema cannot occur at an endpoint of a graph. Ill Not all functions have relative extrema O a) None are correct O b) Only l is correct O c) Only ll is correct O d) Only I and II are correct O e) Only III is correct Of) Only I and Ill are correct 2 g) Only ll and Ill are correct oh) All are correct