Which of these probably could not be used to identify you without additional information? A. Your Social Security number B. Your driver's license number C. A vacation photo D. Your passport

## Step 1<br />This problem is about understanding the concept of personal identification information. Personal identification information is any data that can be used to identify an individual. This includes Social Security numbers, driver's license numbers, and passport numbers, as they are unique to each individual and can be used to identify them.<br /><br />## Step 2<br />On the other hand, a vacation photo does not typically contain unique identifiers that can be used to identify an individual without additional information. A photo can be of any person and does not necessarily provide enough information to identify a specific individual.<br /><br />## Step 3<br />Therefore, among the options provided, a vacation photo is the least likely to be used to identify an individual without additional information.