In recent years, several large corporations incorporated and headquartered in State A have suddenly been acquired by out-of-state corporations that have moved all of their operations out of State A. Other corporations incorporated and headquartered in State A have successfully resisted such attempts at acquisition by out-of-state corporations, but they have suffered severe economic injury during those acquisition attempts. In an effort to preserve jobs in State A and to protect its domestic corporations against their sudden acquisition by out-of-state purchasers, the legislature of State A enacts a statute governing acquisitions of shares in all corporations incorporated in State A. This statute requires that any acquisition of more than 25% of the voting shares of a corporation incorporated in State A that occurs over a period of less than one year must be approved by the holders of record of a majority of the shares of the corporation as of the day before the commencement of the acquisition of those shares. The statute expressly applies to acquisitions of State A corporations by both in-state and out-of-state entities. Assume that no federal statute applies. Is this statute of State A constitutional? 
No, because one of the purposes of the statute is to prevent out-of-state entities from acquiring corporations incorporated and headquartered in State A.  No, because the effect of the statute will necessarily be to hinder the acquisition of State A corporations by other corporations, many of whose shareholders are not residents of State A and, therefore, it will adversely affect the interstate sale of securities.  Yes, because the statute imposes the same burden on both in-state and outof-state entities wishing to acquire a State A corporation, it regulates only the acquisition of State A corporations, and it does not create an impermissible risk of inconsistent regulation on this subject by different states.  Yes, because corporations exist only by virtue of state law and, therefore, the negative implications of the commerce clause do not apply to state regulations governing their creation and acquisition.