Beth made the chart shown.

a 2-column table with 1 row. the first column labeled x has entries wall clock, t v remote control, portable music player. the second column labeled y has entries refrigerator, table lamp, hair dryer.
which headings best complete the chart?

x: use dc
y: use ac

x: use ac
y: use dc

x: powered by current
y: powered by magnetism

x: powered by magnetism
y: powered by current