Final answer:
Social Security numbers are criticized for lacking uniqueness, which can lead to issues such as identity theft and concerns over privacy. Voter ID laws also relate to the theme of balancing security with voting accessibility.
Step-by-step explanation:
Use of Social Security numbers as a means of identification has been criticized because they lack uniqueness (option b). Each Social Security number is meant to be unique to an individual; however, there have been instances of duplication and identity theft, undermining the system's integrity. Given the modern challenges of data security and the instances where sensitive personal information, such as Social Security numbers, has been compromised, the criticism stems from concerns over privacy and the potential for misuse.
Voter ID laws have sparked debate where some argue that they serve as a necessary check against fraud, while others suggest they can be a barrier to voting. The central theme here is the balance between ensuring security and accessibility in systems that use personal identification.