What Is the Most Likely Explanation for the Dark Area

question 48

Multiple Choice

What is the most likely explanation for the dark area in the image below?

• A)It is a region where there are no stars.
• B)It is a region with lots of dark matter.
• C)It is a super-massive black hole.
• D)It is a region with thick dust blocking the starlight coming from behind.
• E)It is a dark star cluster.

---

Definitions:

Blood Pressure

The pressure of circulating blood on the walls of blood vessels, an important indicator of heart health.

Effectiveness

The degree to which a process, intervention, or action achieves its intended result or outcome.

Hamilton Depression Rating Scale

A psychological questionnaire used for assessing the severity of depression symptoms.

Operational Definition

A clear, precise description of a variable within a study in terms of the specific operations or activities used to measure or manipulate it.