Final answer:
The observation 'Mr. Munro was better today' lacks objectivity because it is a subjective statement without quantifiable data. In case studies, the inability to generalize findings to the larger population is a major limitation.
Step-by-step explanation:
The observation "Mr. Munro was better today" suffers from C) Lack of Objectivity. Such a statement is vague and subjective, as it doesn't provide measurable data or specific information about Mr. Munro's condition. It relies on the observer's personal judgement rather than quantifiable information, which can lead to inconsistencies and misunderstandings in the patient's medical record.
Relating to the other question about the limitations of case studies, the major limitation is c. the inability to generalize the findings from the approach to the larger population. Case studies provide in-depth information about a particular individual or group, but because they are so specific, it's difficult to apply their findings to a larger group or situation.