Look at the figure. Which step should be taken next to construct a line through point R that is perpendicular to ? Place the compass on point T. Without changing the setting from the previous step, draw another small arc below the large arc.

Place the compass on point S. Without changing the setting from the previous step, draw a small arc through point R.

Place the compass on point T. Without changing the setting from the previous step, draw a small arc through point R.

Place the compass on point T. Without changing the setting from the previous step, draw a small arc above line st.