Integers

Amulya and Amar visited two places A and B respectively in Kashmir
and recorded the minimum temperatures on a particular day as
–4°C at A and –1°C at B. Which of the following statement is true?
(A) A is cooler than B
(B) B is cooler than A
(C) There is a difference of 2°C in the temperature
(D) The temperature at A is 4°C higher than that at B.