The correct answer is D, as it describes a task that is most likely to be performed by the tester. A tester is a person who performs testing activities such as planning, designing, executing, and evaluating tests2. Creating the detailed test execution schedule is one of these activities, as it involves defining the order and timing of test cases to be executed based on various factors such as dependencies, risks, priorities, and resources2. Option A is incorrect, as it describes a task that is most likely to be performed by the test manager. A test manager is a person who leads and manages testing activities such as establishing test policies and strategies, managing test teams and stakeholders, monitoring and controlling test progress and quality, and reporting on test results2. Developing a test strategy and test policy for the organization is one of these activities, as it involves defining the overall approach and objectives for testing at an organizational level2. Option B is incorrect, as it describes a task that is most likely to be performed by the test analyst. A test analyst is a person who supports testing activities such as analyzing requirements and risks, designing and prioritizing tests, evaluating test coverage and traceability, and reviewing work products2. Introducing suitable metrics for measuring test progress is one of these activities, as it involves defining and collecting quantitative data to monitor and control various aspects of testing such as efficiency, effectiveness, quality, and maturity2. Option C is incorrect, as it describes a task that is most likely to be performed by the test leader. A test leader is a person who coordinates testing activities such as planning and estimating tests, allocating tasks and resources, supervising test execution and evaluation, communicating with stakeholders, and resolving issues2. Promoting and advocating the test team within the organization is one of these activities, as it involves demonstrating the value and benefits of testing to other parties such as management, developers, customers, and users2. References: 2, Section 2.3