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The ratio of federal debt held by the public to that held by federal government accounts for any given year would be the measure of the lighter top bar over the measure of the darker bottom bar for that year. (To get the measure of the lighter top bar, you must subtract the value of the darker bottom bar.) While the federal government accounts percent hovered near the low teens throughout most of the graph, debt held by the public rose above 100% during portions of the 1940s. Identify the year in which the lighter top bar is the largest in comparison to the darker lower portion. In this chart, it happens to be the tallest bar overall, which was 1946, although it’s not necessary to identify the exact year:
Total bar: 120 (actually a bit more)
Dark bottom bar: 15 (or a bit less)
Light top bar: 120 (or more) – 15 (or less) = 105 (or a bit more)
The ratio is thus 105 (slightly more) : 15 (maybe less), which is 7 : 1 (or a bit higher). Among the given options, this ratio is closest to 8 : 1.
Answer: D