A blood glucose test, or fasting PG test, is given after a patient has gone without food for at least eight hours. It's widely considered to be a reliable test, and it appears the results aren't affected by patient age or physical activity. Many doctors prefer this method of testing because it's easy, fast and inexpensive. In this context, RELIABLE means __________
A. noteworthy
B. benign
C. considerate
D. accurate
Accurate: consistently good quality or performance
Therefore, the Correct Answer is D.