Mr. Jones stated that he had a headache. This type of information is:

Mr. Jones stated that he had a headache. This type of information is subjective.

Subjective information is based on personal opinions, interpretations, feelings, or beliefs, which can vary from person to person. Mr. Jones's report of his headache reflects his personal experience and cannot be measured or verified by others, thus categorizing it as subjective.

Absorbed information pertains to data that has been taken in or assimilated, often relating to learning or experiences that have influenced a person's understanding. In this context, Mr. Jones's statement about his headache does not involve the process of absorption but rather his personal expression of a feeling, making this choice irrelevant.

Observed information is based on measurable and verifiable facts that can be seen or recorded by others. While Mr. Jones's headache may lead to observable signs (like wincing or holding his head), his statement itself is based on his internal experience and cannot be directly observed, thus making this choice incorrect.

Objective information is factual and independent of personal feelings or opinions, usually supported by concrete evidence. Mr. Jones's statement regarding his headache is inherently personal and cannot be verified without his subjective report, therefore it does not fit the definition of objective information.

In summary, Mr. Jones’s expression of having a headache exemplifies subjective information, as it reflects his personal experience that cannot be independently verified. In contrast, the other options—absorbed, observed, and objective—do not accurately represent the nature of his statement, which is inherently personal and cannot be quantified or assessed by others without his input.