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13.1.78-GC Question Help From the graph of the function below, find the coordinates of all relative extrema. y = x4 - 4x3 +4x +1 Select the correct choice below and, if necessary, fill in the answer box within your choice. 4 O A. The graph of the function has relative minima at and relative maxima at (Type an ordered pair. Round to two decimal places as needed. Use a comma to separate answers as needed.) O B. The graph of the function has relative minima at , but no relative maxima. (Type an ordered pair. Round to two decimal places as needed. Use a comma to separate answers as needed.) O C. The graph of the function has relative maxima at but no relative minima. (Type an ordered pair. Round to two decimal places as needed. Use a comma to separate answers as needed.) O D. The graph of the function has no relative extrema