Find out which of the figures can be formed from the pieces given in the first figure $(X)$.

Let's evaluate the component shapes inside figure $(X)$:
* Figure $(X)$ contains $4$ distinct triangles within a square outer boundary.
* There are two larger right-angled triangular segments and two smaller right-angled triangular segments.

When we look at assembling these exact $4$ pieces to form a complete figure:

* Joining the hypotenuses of these component triangles symmetrically inside a square grid results in a full square divided completely by its two intersecting main diagonals.
* Figure (A) accurately illustrates this setup, where the square frame is perfectly divided into $4$ sub-triangles by both complete diagonals.