Statement 1
x = 2
The value of x alone cannot provide the value of k because an increase or decrease in the value of y will definitely alter the value of , hence statement 1 is INSUFFICIENT.
Statement 2
$$y^2=3$$
$$y=\sqrt{3}$$
$$y=\sqrt{2+1}$$
This doesn't provide us with the value of k, hence statement 2 is INSUFFICIENT.
Combining statement 1 and 2 together.
The other triangle at the top now have 2 sides of length=2 and one of its angle =30 deg each
Hence k = 30 deg
both statements are INSUFFICIENT.
$$answer\ is\ Option\ C$$