Which best describes the extent to which the corporate form can be used to as a shield from future legal obligations:

a. It is permissible to structure corporate groups to avoid tax and existing legal obligations

b. The law permits, and therefore it is ethical, to make a new company, or structure a group of companies, in order to protect shareholders against existing legal obligations (but not future legal obligations).

c. The law provides some scope to create a new company, or structure a group of companies, in order to protect shareholders against potential legal obligations. However, just because it is legally possible, doesn't mean it is ethical.

d. It is always illegal to structure corporate groups to manage the risk of potential legal obligations