As online technology for music became popular, many major record labels continued to sell CDs instead of changing to online distribution technologies for music. Their subsequent poor outcome is a lesson to marketers about $\_\_\_\_\_\_\_\_\_\_.$

how new technologies must be used in conjunction with older technologies

the efficient management of distribution channels

using the product$-$market expansion grid to consider ways to grow

the importance of environmental scanning and adaptation

how older technologies should be marketed to customers