Answer:
B. Internal Revenue Code.
Step-by-step explanation:
The federal tax laws of the U.S. are jotted under Title 26 in the U.S. Code. The Internal Revenue Code has been headed under Title 26. The laws have been divided and organized separately. The income tax, gifts, and excise taxes are arranged by dividing them into subtitles. Internal Revenue Service has been assigned the task of looking into the implementation of the laws.