Observe the sequence of figures.
Which of the answer choices correctly completes the sequence?
**Sequence:**
1.
A large square, oriented normally.
Inside, a small shaded circle is in the top-left corner.
2.
A large square rotated 45 degrees (a diamond).
Inside, the small shaded circle is in the top-right corner.
3.
A large square, oriented normally.
Inside, the small shaded circle is in the bottom-right corner.
4.
A large square rotated 45 degrees (a diamond).
Inside, the small shaded circle is in the bottom-left corner.
