In scientific reasoning, an inference is best described as:

• A. Fact
• B. Observation
• C. Data
• D. Opinion

Answer: (D)

In scientific reasoning, you draw conclusions from evidence. An inference is the conclusion you reach based on what you’ve observed and the data you’ve collected; it’s an interpretation of what those observations mean or why something happened. It isn’t a direct fact you can point to, and it isn’t the raw data itself. Think of it as an educated interpretation—a reasoned guess about the cause, effect, or meaning suggested by the evidence. For example, if you notice wilted leaves and a dry soil, you might infer that the plant needs water. This conclusion comes from the observations and reasoning about them, rather than from a direct, unambiguous observation of watering.