Final answer:
Year-long snow and ice are found at high altitudes and latitudes, as cold temperatures in these areas allow snow and ice to persist throughout the year. Hence, the correct option is C.
Step-by-step explanation:
Year-long snow and ice are predominantly found in locations that are either at high altitudes, polar regions, or both. Therefore, the correct response to the question about where we would expect to find year-long snow and ice is c) high altitudes and latitudes.
The high altitudes, such as those in the Alpine Regions, experience significant snowfall and cold temperatures that can sustain snow and ice throughout the year. Similarly, the polar regions are known for their cold climate, which is conducive to keeping snow and ice year-round. In contrast, low latitudes typically equate to warmer climates, except when they are combined with high altitudes, where the temperature can be low enough for snow and ice to persist.