Authorized stock is the maximum number of shares a corporation is legally permitted to issue under its corporate charter (articles of incorporation). That is why choice D is correct. The authorized share count is established when the company is formed and can typically be changed later only through proper corporate procedures (often requiring board approval and shareholder approval, depending on jurisdiction and governing documents). The purpose is to define the company’s legal capacity to issue shares for capital raising, compensation plans, acquisitions, and other corporate needs.

Choice A, issued stock, refers to shares that have actually been sold/issued by the corporation to shareholders. Issued shares are always less than or equal to authorized shares. Choice B, treasury stock, refers to shares that were previously issued and outstanding but have been repurchased by the corporation and are held in the company’s treasury; treasury shares are not outstanding and typically have no voting rights or dividend rights while held by the issuer. Choice C, restricted stock, refers to shares subject to resale restrictions (often associated with Rule 144 or insider/control stock concepts), not the legal maximum number of shares.

This question is a straightforward corporate equity definition commonly tested on the SIE because it links to shareholder rights, corporate actions, and capitalization structure. Candidates should clearly distinguish:

Authorized = legal limit the company may issue

Issued = shares the company has sold/issued

Outstanding = issued minus treasury (shares held by public)

Treasury = repurchased shares held by the issuer

Understanding these terms helps when analyzing corporate filings, dilution, and equity financing decisions.