Answer:
a. Cash $40,000
Common Stock $40,000
Step-by-step explanation:
When the owners of a business or sole stockholder provides cash to run the activities of the business in exchange for common stock, such cash is recognized as equity.
To the business, an assets has been added in form of cash, but then, this asset results in an obligation not to a 3rd party but to the owner of the business.
Hence assets and equity are said to have increased as a result of this transaction.
The required entries are debit cash and credit common stock.