Which of the Following Functions Does a Project- and Issue-Tracking

Multiple Choice

Which of the following functions does a project- and issue-tracking software perform?

A) comparing and analyzing a project with a competitors' project in the market
B) enforcing checkout procedures to prevent developers from writing over another's files
C) allowing customers to estimate the sales of a product before its launch in the market
D) maintaining a complete history of project activity, including dates and tasks assigned