Afeature in excel that allows you to graphically display in a single cell the trend across a range of cells is called a
a. pivot line.
b. spark point.
c. pivot point.
d. sparkline.

The correct answer is letter D. Sparkline. A sparkline is a tiny chart in a worksheet cell that provides a visual representation of data. It allows you to graphically display in a single cell the trend across a range of cells -- show trends in a series of values, such as seasonal increases or decreases, economic cycles, or to highlight maximum and minimum values. 

The type of program is the hierarchical grid