Which of the following most closely approximates

Which of the following most closely approximates
$$\sqrt{\frac{\left(3.97\right)\left(50.02\right)}{1.84}}=?$$

A. 1
D. 5
C. 10
D. 20
E. 100

Tha OA is C.

Why the answer choices are only integers? I don't understand it. Can any expert help me with this PS question please? Thanks.

Hi LUANDATO,
Let's take a look at your question.

$$\sqrt{\frac{\left(3.97\right)\left(50.02\right)}{1.84}}=?$$
Since we are asked to approximate the value of the radical expression given, so let's round off the decimals to simplify.

$$\approx\sqrt{\frac{\left(4\right)\left(50\right)}{2}}$$

$$\approx\sqrt{\frac{200}{2}}$$
$$\approx\sqrt{100}$$
$$\approx10$$

Therefore, Option C is correct.

Hope it helps.
I am available if you'd like any follow up.