Share allotment account is when share allotment becomes due

The correct answer is: B. Credit

Share allotment account is credited when share allotment becomes due. This is because the company has now incurred an obligation to issue shares to the shareholders, and this obligation is recorded as a liability.

The other options are incorrect because:

• Option A (Debit) is incorrect because the share allotment account is a liability account, and liabilities are always credited when they are incurred.
• Option C (Debit or Credit) is incorrect because the share allotment account is always credited when share allotment becomes due.
• Option D (All of the above) is incorrect because only option B is correct.

I hope this helps! Let me know if you have any other questions.