Final answer:
John should create a line chart to show the trends of sales for 4 quarters, as it is effective in illustrating changes over time and perfect for time series data.
Step-by-step explanation:
John wants to create a chart that shows trends of sales for 4 quarters. The most suitable type of chart for illustrating trends over a period of time, such as quarterly sales data, is a line chart. Line charts are specifically designed to show how a data point or points have changed over time, making them highly effective for time series analysis. They are often used in fields like economics to present continuous data about prices, wages, and quantities bought and sold over time, thus perfectly aligning with John's needs to display sales trends. John should create a Line Chart to effectively visualize the sales trends for the 4 quarters. A Line Chart is ideal for displaying trends over time, making it suitable for tracking quarterly sales performance. Each quarter's sales data can be plotted on the chart, and the lines connecting the data points provide a clear representation of how sales values change across the four quarters. Unlike a Radar Chart, which is more suitable for displaying multivariate data, or Bubble and Scatter Charts, which emphasize relationships between two variables, a Line Chart is specifically designed to showcase trends and variations in a single variable over a sequential timeframe, making it the most appropriate choice for John's sales data.