Please refer again to Figure $2.$ This time, the incident ray is coming in from water $($n$=1\mathrm{.}33)$ rather than air. And this time, theta $=30\mathrm{.}4$ degrees, y $=25\mathrm{.}1$ cm and h $=1\mathrm{.}85$ cm$.$ What is x now?

Question $5$ options:

a: $10\mathrm{.}9$ cm

b: $15\mathrm{.}6$ cm

c: $6\mathrm{.}2$ cm

d: $20\mathrm{.}3$ cm