The student clearly stated an appropriate and specific question for the historical investigation, focusing on the extent of Cuban military involvement in the Battle of Cuito Cuanavale and its contribution to the collapse of Apartheid in South Africa. The investigation's scope is well-defined, covering the specific timeframe of 1987-1988 and significant historical figures like Nelson Mandela and Fidel Castro. The student chose relevant sources and effectively explained their relevance to the topic, detailing the insights provided by each source. However, the student did not specify whether the sources are primary or secondary, nor did they provide a precise analysis of the values and limitations related to the origins, purposes, and content of the chosen sources.
