change language and dont over expound a$.$ Demand $($Buyers$)$: Customers who have needs or desires for a particular product or service and are willing to pay for it$.$

b$.$ Supply $($Sellers$)$: Companies or individuals who provide goods or services to meet the demand of customers.

c$.$ Channels of Communication: Platforms or methods through which information about products or services is exchanged between buyers and sellers, such as advertising, social media, or sales representatives.

d$.$ Offering $($Product or Service$)$: The actual product or service being sold, which fulfills the needs or desires of customers and provides value to them.