Which of the following mentioned properties are valid for a Cryptarithmetic problem? A. A number 0-9 is assigned to a particular alphabet. B. Each different alphabet has a unique number. C. All the same alphabets have the same numbers. D. The numbers should satisfy all the operations that any normal number does.

Artificial intelligence is intelligence—perceiving, synthesizing, and inferring information—demonstrated by computers, as opposed to intelligence displayed by humans or by other animals. "Intelligence" encompasses the ability to learn and to reason, to generalize, and to infer meaning. (Source: Wikipedia)