The correct statement is: With probable cause, there is actual knowledge that a crime has been committed; with reasonable suspicion, there is not actual knowledge.
Probable cause is a higher standard of evidence that law enforcement must meet to obtain a search warrant or make an arrest, indicating that there is a reasonable belief that a crime has been committed. Reasonable suspicion, on the other hand, is based on specific and articulable facts that lead to the belief that a crime may be occurring, but it does not require actual knowledge of a crime.