Extracted text: D 31% Ringtone You 22 April, 22:25 10. Let (X, Tx) and (Y, Ty) be two topological spaces, such that X = {a, b,c, d}, Tx = {ó, X, {a}, {a, b}, {a, b, c}} Y = {1,2, 3, 4}, Ty = {ó,Y, {2}, {2,3, 4}} Consider the functions f: X + Y and g: X +Y defined by f(a) = f(b) = 2, f(c) = 4, ƒ(d) = 3 g(a) = g(b) = g(d) = 2, g(c) = 3 Then (a) f and g are both continuous (b) f and g are both discontinuous (c) f is discontinuous and g is continuous (d) f is continuous and g is discontinuous