Which gallery houses the data bars tool?
o cell styles
o page layout
o conditional formatting
o sort and filter

Conditional formatting is used as gallery houses under data bar tools

Explanation:

In ms-excel sheet data bar tools are used to analyze. where the end-user has to select the worksheet or range of cells and select conditional formatting by clicking on the home tab and select format click and click conditional formatting. once end-user points of data bars and then click a solid fill etc.

The end-user can change color on the data bar also. End-user has to select shapes and styles group and fill shapes as per the end user selection data bar will change the analysis.

answer; geometric center line;

(http) hyper text transfer protocol

which means its an input that allows the "site" to connect with severs.