The condition 'temperature between -40°C and 125°C' can be written as inequality -40°C ∠ x°C < 125°C
Formula of changing degree Celcius to degree to degree Fahrenheit is given
°C = 5/9 (°F - 32)
Rearranging to make °F the subject
°F =

Substitute °C = -40
°F =

Substitute °C = 125
°F =

Substitute °F = -40 and °F = 257 into the inequality
-40°C < x°C < 125°C
-40°F < F < 257°F
Correct answer: B