Alexandria Corporation has the following shareholders equity on July 31, 2021:

Shareholders' equity:

Share capital

$ 10 preferred shares, cumulative

10,000 shares authorized, 5,000 shares issued

$ 2,000,000

Common shares,

600,000 shares authorized, 10,000 shares issued

300,000

Total share capital

2,300,000

Retained earnings

500,000

Total shareholders equity

$ 2,800,000

The maximum number of common shares that Alexandria can issue is:

a) 10,000.

b) 610,000.

c) 600,000.

d) cannot be determined from the information provided.