Consider the following Scala definitions. det foldleft tab) (xsilistin, B, B.)->) - * mateh case Nil case y yo -> foldtekt ty, eto, y). 1) ) 1 def g (altint, a2 Int, aint, bint) Int - foldieft (List (al, a2, 3). b. (xiint.y Int) => Y - * > Which of the following is equivalent to g(al, a2, a3, b) for all al, a2, a3, b? Ob-(al-(a2-a3)) ((b-al)-a2)-a3 O a3-(a2-(al-b)) ((b-a3)-a 2)-al O ((a 3-a 2)-al)-b