Answer:
c. classes, series.
Step-by-step explanation:
Corporate stock refers to the shares issued to the shareholders through which the company gets its funds for the business.
These shares are of two classes mainly:
Equity and Preference
These are further divided into series like:
Equity = Fully paid, 50% paid
Preference = 5% Preference or 10% preference capital or any other rate.
Further it includes, the reserve and surplus also.