; (B) administer oaths or affirmations; or (C) compel the attendance of witnesses or the production of documentary or other evidence. (5) Preemptive action by Federal Trade Commission If the Commission institutes a civil action or an administrative action with respect to a violation of section 3, the attorney general of a State may not, during the pendency of the action, bring a civil action under paragraph (1) against any defendant named in the complaint of the Commission based on the same set of facts giving rise to the alleged violation with respect to which the Commission instituted the action. (6) Venue; service of process (A) Venue Any action brought under paragraph (1) may be brought in— (i) the district court of the United States that meets applicable requirements relating to venue under section 1391 of title 28, United States Code; or (ii) another court of competent jurisdiction. (B) Service of process In an action brought under paragraph (1), process may be served in any district in which the defendant— (i) is an inhabitant