Final answer:
The coldest temperature out of the four days was -12°F.
Step-by-step explanation:
The coldest temperature out of the four days was -12°F (Option 4). The other temperatures were: -8°F (Option 1), 2°F (Option 2), and -7°F (Option 3). To determine the coldest temperature, you compare the given temperatures and choose the one with the lowest value. In this case, -12°F is colder than -8°F, 2°F, and -7°F.