please answer with explanation

l I Let the aggregate demand be described by the mction J D=D (EHmPF [Pg 1, G, YT, YFTF, ca, 30, yo). Assume the following functions for consumption, exports and imports: Jr C=Co+CI{Y-TJ EX = g +|(YF TF)+lq IMP=y0+n(YT)r2q where 60, g, and m are parameters (numbers) that can be positive or negative, and c. , l , y] , g, and y; are parameters (numbers) greater than zero. Then, ALL of the following changes can shift the aggregate demand function DOWN in the Keynesian Cross diagram: a] a lower yo, lower g, lower to, lower T. lower G, lower I , and a lower E W. bl a higher m, lower n. lower on, higher T. lower G, lower 1, and a lower EH\". c] a lower yo, higher g. higher on, lower T. higher 6, higher I, and a higher Emp. dl a lower 11], lower g, lower on, lower T, higher G. higher I. and a lower Egg. e} a higher yo, higher ,6\