Final answer:
A diary entry is an example of a primary source that can provide clues about the time frame of a girl named Zippy by offering direct evidence about her experiences and the time period.
Step-by-step explanation:
The clues that can provide information about the time frame of a girl named Zippy could come from various sources. One such source is a diary entry, which is considered a primary source of historical information. It offers direct evidence about the past from someone who experienced the events in question. Diaries can include personal reflections, observations, and details that give insight into the time period. Another example of a primary source is an anthropologist's field notebook, containing direct records of observations and experiences from the time they were studying.
Photographs, such as family photographs, can also provide important visual context about the era, the environment, and the personal circumstances surrounding the subject. If you analyze a photograph, it can reveal fashion, technology, and other cultural markers that help establish a timeframe. Detailed examination of such sources can answer questions about the general time period, the events occurring at the time of the document's creation, and the perspectives or experiences of those involved. In this case, a diary entry (option A) would provide a clue about Zippy's timeframe.