Answer :
The last one: Pomelos and oranges—types of citrus fruits—grow in tropical climates.
Answer:
Pomelos and oranges—types of citrus fruits—grow in tropical climates is the answer(the last one)
Explanation:
Dashes can be used like parentheses. This means that dashes can set off nonrestrictive (or nonessential) information within a sentence. In the correct answer, the phrase "types of citrus fruits" is nonrestrictive. The phrase provides extra information about pomelos and oranges. In addition, the sentence still makes sense without the nonrestrictive phrase.