The MOST clear form of ostracism among the options provided is solitary confinement.
Here's why:
1. Solitary confinement: This practice involves isolating an individual from others, typically within a confined space for a significant period. It is a severe form of social exclusion used in correctional facilities as a form of punishment or behavior control. The person subjected to solitary confinement experiences extreme isolation and limited social interaction, which can have severe psychological effects due to the lack of human contact and communication.
Therefore, in the context of ostracism, where someone is deliberately excluded or ignored by a group, solitary confinement stands out as the most extreme and clear example among the options given.
