Letter c. Obviously I thought it was A which was wrong. Thanks

Decade Performance (%) Decade Performance (%) 1830s 1.8 1920s 13.2 1840s 9.7 1930s - 3.3 1850s 5.9 1940s 9.5 1860s 11.3 1950s 18.2 1870s 7.9 1960s 8.0 1880s 6.2 1970s 6.7 1890s 5.3 1980s 16.6 1900s 11.2 1990s 17.7 1910s 2.3 2000s - 0.5 How have stocks performed in the past? The following table shows performance of a broad measure of stock performance (by percentage) for each decade from the 1830s through the 2000s. Complete parts a through g below. Click the icon to view the stock performance table. a. Plot the time series. Choose the correct graph below. O A. O B. VC. O D. 20 20- 20- 20- Performance (%) Performance (%) Performance ( Performance ( 1880s-#4 12000s 2000s 18805 1 12000s Decade Decade Decade Decade b. Fit a three-period moving average to the data and plot the results. Choose the correct graph below. O A. OB. C OD. Performance (%) Performance (9 Performance ( Performance ( 18805 000s 2000s Decade Decade Decade Decade c. Using a smoothing coefficient of W = 0.50, exponentially smooth the series and plot the results. Choose the correct graph below. O A. O B. O c. OD. 20 20- 20 10 10 10 Performance (%) Performance (%) Performance (% Performance ( 1880s H4 12000s 18 80341 12000s 2000s 188 C Decade Decade Decade Decade PIC . COLLAGE