(d) y(x)y(-x) is also a solution. let u(t) be a continuously differentiable function taking non-negative values for t> 0 and satisfying u'(t) = 4u" (t); u(0) =0

(D) y(x)y(-x) is also a solution. Let u(t) be a continuously differentiable function taking non-negative values for t> 0 and satisfying u'(t) = 4u" (t); u(0) =0. Then (A) u(t) = 0 (B) u(t) = t 0 for 0