Gabriella has spent the morning reviewing data from the manufacturing department to determine whether finished products are meeting the quality standards established by the organization. which function of management does this best? describe?

The function of management which Gabriella's action best described is CONTROLLING. There are four basic functions of management; they are planning, organizing,leading and controlling. Controlling is important for ensuring that all other functions of the management are in place and operating successfully. Controlling involves establishing performance standards, monitoring the outputs of employees, etc. The process of controlling often lead to the identification of problems that need to be addressed. 

This is true for sure