Explanation:

Sections 4 and 5 – 
4. Sale and agreement to sell. (1) A contract of sale of goods is a contract whereby the seller transfers or agrees to transfer the property in goods to the buyer for a price. There may be a contract of sale between one part-owner and another. (2) A contract of sale may be absolute or conditional (3) Where under a contract of sale the property in the goods in transferred from the seller to the buyer, the contract is called a sale, but where the transfer of the property in the goods is to take place at a future time or subject to some condition thereafter to be fulfilled, the contract is called an agreement to sell. (4) An agreement to sell becomes a sale when the time elapses or the conditions are fulfilled subject to which the property in the goods is to be transferred. 
5. Contract of Sale how made. (1) A contract of sale is made by an offer to buy or sell goods for a price and the acceptance of such offer. The contract may provide for the immediate 4delivery of the goods or immediate payment of the price or both, or for the delivery or payment by instalments, or that the delivery or payment or both shall be postponed. (2) Subject to the provisions of any law for the time being in force, a contract of sale may be made in writing or by word of mouth, or partly in writing and partly by word of mouth or may be implied from the conduct of the parties.