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 Relationship Between a Company & Its Subsidiary. A subsidiary is a company that is wholly owned or majority controlled by another company, the parent.. Companies form or purchase subsidiaries for various reasons, including expanding business operations and spreading the risk of liability by engaging in new lines of business.