Question: After activating a chart, which sequence adds a trendline to the chart?

1. In the Format group, select Trendline from the Insert Shapes list.
2. Click outside the plot area and select Add Trendline
3. Click inside the plot and select Forecast.
4. Right-click a data series and select Add Trendline.

Answer: The correct answer of the above question is Option D:Right-click a data series and select Add Trendline.