The push model is also called which means the production process begins with a
make-to-stock; forecast
make-to-order; customer order
make-to-order; forecast
make-to-stock; customer order

Make-to-stock; forecast

Explanation:

The push model is also known as make to stock, which basically mean that production occur without any actual requirement and this process begin with a forecast. In the make to stock production, the orders are resultant of the production planning.

The push model basically used in operational and supply chain management. Make to stock method is the traditional method of production and require an efficient forecast for its demand.

i belive the answer you are looking for is d: the nether