False. If the average product (AP) is rising, it does not necessarily mean that the marginal product (MP) is also rising. The average product is calculated as the total output divided by the total quantity of inputs, while the marginal product refers to the additional output resulting from using one more unit of input. AP rises when MP is greater than AP, which increases the average. However, once MP equals AP, further increases in MP will lead to AP rising until MP starts to decline. Once MP starts to decline but is still above AP, AP can continue to rise. Therefore, AP can be rising even if MP is starting to fall, as long as MP is above AP