Question 3 (1 point) The graph of a function f is given. Use the graph to answer the question. Find the numbers, if any, at which f has a local minimum. What are the local minima? -1+ O a f has a local minimum at x = -It; the local minimum is -2 Ob f has a local minimum at x = -It and it; the local minimum is 2 O C f has a local minimum at x = 0; the local minimum is -2 O d f has no local minimum