To answer this question, we need to understand the concepts of test estimation, test control, and test monitoring. Let's go through each option to understand why it is correct or incorrect:
Option A) 1-b, 2-c, 3-a - This option is incorrect.
Option B) 1-b, 2-a, 3-c - This option is incorrect.
Option C) 1-c, 2-a, 3-b - This option is incorrect.
Option D) 1-a, 2-b, 3-c - This option is correct.
The correct answer is Option D. This option correctly matches the following:
(1) Test estimation - Effort required to perform activities.
(2) Test control - Reallocation of resources.
(3) Test monitoring - Measures of tracking process.
Therefore, the correct answer is Option D.