According to Ryberg, if the motive for observation is the reduction of crime, then people's rights to privacy are upheld.
Ryberg argues that when the primary intention behind surveillance or observation is the reduction of crime, it can be seen as a legitimate and justifiable intrusion into people's privacy.
In such cases, the emphasis is on maintaining public safety and preventing criminal activities which outweigh individuals' privacy rights in certain situations. This aligns with the notion that the greater good of crime reduction justifies limited invasions of privacy to ensure the safety and security of society as a whole.
Therefore, the Option C is correct.