How many valence electrons does hydrogen need to have a full first shell?

Well, the element of hydrogen only has 1 electron in its s sub shell, if it's s sub shell for the energy level of 1 were to be filled, there would need to be 2 electrons present in its shell to have a full first shell, as the s sub shell can only hold 2 electrons within it.

The answer is the first option just took the test

What do you mean by that? like the contents? the thc level?