Question 3 (3 points) Which of the following is a TRUE statement about federal tax law? Secondary sources of federal tax law come from the three branches of government. 11 Treasury Regulations are a primary source of federal tax law. Primary sources of tax law help a tax practitioner locate secondary sources. IV RIA Checkpoint's Federal Tax Coordinator is a secondary source of federal tax law. a) Only I and II are true. b) Only III and IV are true. O c) Only I and III are true. O d) Only II and IV are true. e) I, II, and I are true