Question

review the details below.

• skiers and snowboarders can check current weather conditions prior to hitting the slopes.
• avalanche forecasts are available from the american avalanche association.
• skiers and snowboarders can take an avalanche safety class to learn how to test snowpack stability, avoid dangerous routes, and use safety equipment.

choose the best topic sentence to introduce a paragraph containing these details.
the best way to reduce the risk of being in an avalanche is to know how to avol one.
skiers and snowboarders must be aware of snow conditions before going into avalanche terrain.
skiers and snowboarders should be able to recognize snow stability.

Explanation:

The details mention checking weather conditions (related to snow conditions), avalanche forecasts (also about snow - avalanche terrain), and learning to test snowpack stability. The first option is too general about "reducing the risk of being in an avalanche" without specifically tying to the elements in the details. The third option only focuses on "recognizing snow stability" which is part of the overall idea but not as comprehensive as the second option. The second option "Skiers and snowboarders must be aware of snow conditions before going into avalanche terrain" encompasses checking weather (a part of snow conditions), avalanche forecasts (related to avalanche terrain and snow conditions), and learning about snowpack (a snow condition aspect).

Answer:

Skiers and snowboarders must be aware of snow conditions before going into avalanche terrain.