D, winter.... summer.
In the northern and southern hemispheres, seasons are opposite from one another. Summer would be opposite to winter. Since both A and C list the seasons as staying the same and B lists spring as opposite to winter... D is the correct answer.
<span>that the patterns of polarity matched up on both sides is the answer </span>
It is already simplified unless the variables have a value
(Please vote me Brainliest if this helped!)
Water footprint: (noun) the amount of fresh water utilized in the production or supply of the goods and services used by a particular person or group.
Basically, it's a measure of humanity's appropriation of fresh water in volumes of water consumed and/or polluted.