The transportation problem deals with the transportation of:a.single product from a source to several destinations.b.several products from a source to a destination.c.single product from several sources to a destination.d.several products from several sources to several destinations.

The transportation problem can deal with all of the above scenarios. It is a special type of linear programming problem where the objective is to minimize the cost of distributing a product from several sources (e.g., factories) to several destinations (e.g., warehouses, markets). These sources and destinations can involve single or multiple products.

a. Single product from a source to several destinations: This is the simplest form of a transportation problem. For example, a company produces a single product at one factory and needs to distribute it to several markets. The problem is to find the least costly way to transport the product from the factory to the markets.

b. Several products from a source to a destination: In this case, a company produces several products at one factory and needs to transport them to a single market. The problem is to find the least costly way to transport all the products to the market.

c. Single product from several sources to a destination: Here, a company produces a single product at several factories and needs to transport it to a single market. The problem is to find the least costly way to transport the product from the factories to the market.

d. Several products from several sources to several destinations: This is the most complex form of a transportation problem. A company produces several products at several factories and needs to distribute them to several markets. The problem is to find the least costly way to transport all the products from the factories to the markets.