Under the Indian Contract Act, 1872, which of the following statements is correct?

A catalogue, price list, or display of goods with prices is not a valid proposal under Section 2(a) of the Indian Contract Act, 1872, but merely an invitation to offer (invitation to treat), inviting customers to make an offer to buy. A third party generally cannot sue for breach of contract due to the doctrine of privity of contract, subject only to narrow exceptions. Under Section 30 of the Act, wagering agreements are void and unenforceable, not illegal (Gherulal Parakh v. Mahadeodas Maiya, AIR 1959 SC 781). Furthermore, under Section 14 read with Section 20 of the Act, consent is also not free when caused by mistake, and an agreement where both parties are under a bilateral mistake as to a matter of fact essential to the agreement is void ab initio rather than voidable.