Which one of the following is an example of an entitlement A. The right to vote B. Receiving Social Security C. Freedom of speech D. Serving in the military?

None of the four are entitlements. The Right to Vote and Freedom of Speech are guaranteed in the Constitution / Declaration of Independence, People pay into Social Security (hardly making it 'something for nothing'), and enlisting in the military is a selfless act which includes the possibility of death or being wounded in combat - as some 6,500 KIA and 46,000 WIA from Iraq and Afghanistan can attest - and Answers thanks you who 'answered the call' and enlisted!!