Mallory Corporation has a calendar year-end. The corporation has paid estimated payments of $10,000 during 2014 but still owes $5,000 for it's 2014 tax year. A. When is the 2014 tax due?____ B. If an automatic extension of time to file is requested, when is the 2014 tax return due?__ C. If an extension of time to file is requested, when is the additional $5,000 of tax for 2014 due?