Concept:A prospectus is a formal public notice issued by a company to attract investors.
Explanation:When a company issues a prospectus, it is making a public invitation.
This invitation asks members of the public to become shareholders.
They do this by subscribing to, or applying for, the company's shares.
The prospectus contains essential information about the company and its share offer.
It is not an invitation to attend meetings or purchase the company's products.
Therefore, the purpose is specifically to invite the public to buy shares in the company.
Answer:A. subscribe to the company's shares.