Final answer:
The correct answer is Option C. -2.9° Fahrenheit, as it is the only temperature that is less than both recorded temperatures of -2.7° and 4.6° Fahrenheit.
Step-by-step explanation:
The student recorded temperatures of −2.7° Fahrenheit on the first day and 4.6° Fahrenheit on the second day. To determine which temperature is less than both of the temperatures recorded, we need to look for a temperature figure that is lower than the lowest temperature recorded, which is −2.7° Fahrenheit.
Among the options given:
- Option A: −1.9° Fahrenheit is greater than −2.7° Fahrenheit.
- Option B: 0° Fahrenheit is greater than −2.7° Fahrenheit.
- Option C: −2.9° Fahrenheit is smaller than −2.7° Fahrenheit, which means it is indeed less than both temperatures recorded by the student.
- Option D: 5.5° Fahrenheit is greater than both temperatures recorded, so it cannot be the correct answer.
Therefore, the correct option is C. −2.9° Fahrenheit because it is less than both −2.7° and 4.6° Fahrenheit.