Which of the Following Is Not True of Tax-Exempt

Which of the following is not true of Tax-exempt Entities having 501c 3 status?

A) Donors to the organization may deduct their contributions as charitable donations.
B) Churches and public charities with tax-exempt status must file an information return Form 990, 990EZ or 990-N with the IRS annually.
C) Tax-exempt entities are prohibited from certain activities such as supporting political candidates.
D) None of the above, these are all true of tax-exempt entities.