The part of authorized capital of a company sold to shareholders is

The part of authorized capital of a company that is actually sold to shareholders and for which they have made payment is called the "paid-up capital". This means that the shareholders have fulfilled their obligation to pay for the shares they purchased from the company. The paid-up capital is the actual amount of money that the company has received from shareholders, and it represents the company's equity capital. The other options are related to the concept of capital in a company, but they do not specifically refer to the part of authorized capital that has been sold to shareholders and for which payment has been made.