Which of the following is a horizontal agreement in the Competition Act, 2002

A "Cartel", defined in Section 2(c) of the Competition Act, 2002, is an association of producers, sellers or distributors at the same level who agree to limit production, supply or price, and is a horizontal agreement presumed anti-competitive under Section 3(3), whereas a "Tie in agreement" and "Resale price maintenance" are vertical agreements under Section 3(4).