A water bottle is ergonomically designed to fit perfectly in the grip of your hand. Unfortunately, it doesn't fit into most bicycle bottle holders and is a little too big to carry when walking or running. Which part of the audience analysis did the designer fail to address?

A.) demographics

B.) understanding

C.) interests

D.) environment

D.) environment

The designer failed to address the environmental context in which the water bottle would be used, such as while biking or running. This aspect of audience analysis considers the physical surroundings and situations in which the product will be used, which in this case, would have influenced the design to make it more versatile for different activities.