What is the result of applying one step of the Euclidean algorithm to GCD(25,7)\text{GCD}(25, 7)GCD(25,7)?
GCD(7,4)\text{GCD}(7, 4)GCD(7,4)
GCD(18,7)\text{GCD}(18, 7)GCD(18,7)
GCD(25,4)\text{GCD}(25, 4)GCD(25,4)
GCD(7,25)\text{GCD}(7, 25)GCD(7,25)