Which of the following statements define a test monitoring activity?

According to the ISTQB Advanced Test Manager syllabus,test monitoringinvolvestracking test progressandcomparing actual results with planned progress. It helps to identify deviations and allows the Test Manager to take corrective actions.

"Test monitoring involves the ongoing comparison of actual progress against the plan using metrics defined in the test plan"

(Source: ISTQB Advanced Level Test Manager Syllabus 2012, Section 1.3.1)

Hence,Option Dreflects a test monitoring activity precisely.