Final answer:
The Share Capital will increase by $3,750 when 1,000 common shares are sold at $3.75 per share.
Step-by-step explanation:
When 1,000 common shares are sold at $3.75 per share, the Share Capital will increase by the product of the number of shares and the sale price per share. To calculate this, you multiply 1,000 shares by $3.75, which equals $3,750. Therefore, the correct answer is that Share Capital will increase $3,750.