What privileges does the Geneva Convention provide to captured individuals?

The correct answer highlights the Geneva Convention's provision allowing captured individuals to maintain communication through writing letters. This privilege serves as a means of ensuring that prisoners of war and other detainees can stay connected with the outside world, particularly with their families and legal representatives. Such correspondence is essential for mental well-being and maintaining a sense of humanity during captivity.

This option aligns with the principles of the Geneva Convention, which aims to protect individuals in armed conflict and ensure humane treatment, including the ability to communicate with loved ones. The emphasis on letters also underscores the importance of maintaining personal connections, which can provide emotional support during difficult times.

The other choices, while they may relate to the treatment of captured individuals in various contexts, do not specifically reflect the protections or privileges outlined in the Geneva Convention as precisely as the ability to write letters does.