Generally no, all communication between husband and wife is what is called Spousal Privilege that states one may not force a wife to testify against her spouse. However, the Spousal Privilege may be breached by an exception to the rule.
A parent company is a company that owns enough voting stock in another firm (subsidiary) to control management and operations by influencing or electing its board of directors. A parent company could simply be a company that wholly owns another company.
The question of the differences between a parent and a holding company is a legal one. While the literal definitions lend little to the fact that legal differences exist, the legal connotation is generally quite different between a parent company and a holding company.enerally, a holding company is inactive except for the purpose of holding other companies. A parent company, however, typically has its own business ventures and purchases its subsidiaries for investment purposes or to aid in its own operations.