The correct answer would be choice C
Your answer should be "that withstands winter winds". Adjective clauses can always be removed from a sentence, and leave a complete sentence behind. They also usually follow the noun they modify. In this case, the clause is modifying tree. Adjective clauses also usually start with certain words, and "that" is one of the starter words. I hope this helps!
Answer:
Cause- what happened
effect- the result of something happening
Explanation:
Cause- The family had no food
Effect- the family was hungry