Organizations Exempt Under Section 501(c)(3) of the Internal Revenue Code

Organizations exempt under section 501(c) (3) of the Internal Revenue code are required to file Form 990 or in some cases an alternate form by the 15^th day of which month?

A) The 9^th month following the taxable year of the organization
B) The 3^rd month of the calendar year
C) The 5^th month following the taxable year of the organization
D) The month in which the organization originally filed