Please help me I need help

Answer:
C.
Step-by-step explanation:
The measure of the angle B = 180 - (90 + 45) = 45
Now, since ∠A = 45 = ∠B then ABC is an isoceles right angled triangle at point C
then BC = AC = 14
applying the Pythagorean theorem:
[tex]AB=\sqrt{CA^{2}+CB^{2} } = \sqrt{14^{2}+14^{2} } = 14\sqrt{2}[/tex]