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.
These 10 facts about space will blow your mind. A parent company is one that owns or controls another company, known as the subsidiary. The parent company is able to direct the business practices of the subsidiary because it controls the voting, thus making determinations like who should sit on the board of the subsidiary.