Les Ternarown wa the classic "playboy" until the day he met Maria, a nun who left the convent to marry Les. Now they are "devoted" to each other. Les won't even watch the Miss Universe contest on TV, and Maria refuses to ever go to church.

This chart shows the number of soldiers killed according to two different sources. source a is a book written by university professors. source b is from a well-known historical website. in a paragraph, explain why the data presented is different, and evaluate the reliability of each source. which should be used in a school research project, and why?