Answer:
I
Because the second and third answer are the past tense sentences but I am not sure about the last one because that one might be future tense
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Hope it helps
1) A pickpocket stole his wallet
2) The scorching sun was unbearable
3) The crowded train screeched to a halt
48 = 12*4
2 square roots 12 = 48
12 = 4*3
4 square roots 6 = 48
Answer: 4*square roots 6