What is the exposition in the four clever brothers

Compare moishe as he is described at the begginning of the memoir with moishe after his escape from death in the forest

Drag the tiles to the correct boxes to complete the pairs. match these vocabulary words taken from great astronomers with their definitions. to come between two things, to interrupt the capacity to reason, judge, and act intelligently to form an opinion without strong evidence relating to the sky conjecture arrowright interpose arrowright celestial arrowright sagacity arrowright

Which source would be the most credible choice for researching the life of anne frank?