3. The total number of serious crimes in the United States leveled off last year after nearly a decade of steep declines, according to FBI statistics released today. The District of Columbia bettered the national trend with a 5-percent drop in serious crimes overall. However, the nation's capital also reported significant increases in robberies, which spiked 20 percent last year, according to the FBI. What was the author's purpose in writing this paragraph? A. to criticize the FBI for not reducing crime enough B. to inform the reader of the new crime statistics C. to persuade the reader to leave Washington, D. C. D. to attract more tourists to visit Washington, D. C. ​