Since the angle is 32 to the horizontal: what you have to do is subtract 90 - 32 to get the angle under the leash...
90 - 32 = 58
Then all you have is a simple trig problem to solve...
hyp = 65N
vert = x
theta = 58
sin(theta) = vert/hyp
sin(58) = (x/65)
x = 65(sin(58))
x = vertical component = 55N
Therefore the answer is: B
