InspiteofallstoriesofprosperityintheUnitesStates,notonlydoespovertyexistthere,butcrimesofvarioustypeshavebeenincreasingatanalarmingrate.Mostactsofviolencewerecommittedbyyoungpeople.57%ofthecriminalsarrestedin1979wereyouthsbelow25ofage. Everyoneagreesthatcrimeispartlyaresultofbadmaterialconditions:poverty,lackofeducation,livingwithinasettledhome,beingparentless,sufferingsfromotherkindsofmisfortune,etc. Therearealsootherfactorsthanmaterialconditionswhichareresponsibleforthesharpincreaseofcrimerate.Inthefirstplace,somestatelawsprovideadeathpenaltybutsomenot.Secondly,theConstitutionallowseverycitizentocarryweaponsforhisownprotection.Itisthereforepossibleandeasyforanyoneinthecountrytogetagun.Finally,therehasbeentoomuchshownonTVandtoomuchreportedinnewspaperofallkindsofcrime,thedetailsofwhicharesoaccuratelydescribedthatevenchildrenknowhowtoduplicatewhattheyhaveseenorread.Allthesehaveresultedinahighfrequencyofcrimescommittedbothbyprofessionalcriminalsand bynonprofessionalonesinmurder,drugsmuggling,robbery,etc. Theauthorintendstotellthereadersthat_________.
A.the United States is a wealthy country although poverty and crime exist there B.crime has become a serious problem in the United States, although it is said to be a prosperous one C.despite the fact that crimes have been increasing rapidly in the United States, it is a country of prosperity D.in spite of stories about poverty and crime in the United States, it is prospering at an increasing r正确答案B