Answer: C) a selection from a biographical dictionary.
Explanation: when looking information, we have to pay attention to the sources we consult, depending of what we are looking for we need to use more objective sources or we can use somewhat bias sources. A bias source is a source that provides information from a specific point of view, or opinion, it is a subjective source. From the given options, the research source that would provide the most bias-free information about H. Vondermoot's life is the corresponding to option C: a selection from a biographical dictionary.