The correct answer is A) To indicate negative feelings towards oneself. Decorating the self serves many purposes, but it is not typically done to indicate negative feelings towards oneself.
The other purposes of decorating the self include B) To separate group members from nonmembers, C) To place the individual in the social organization, and D) To provide a sense of security. Decorating the self is often used to create a sense of belonging or to indicate one's place in the social organization. It can also be used to distinguish members of a group from nonmembers and to provide a sense of security and protection.