Which sentence correctly punctuates a nonessential appositive phrase?
O Aries, one of thirteen constellations in the Zodiac, contains four stars.
O Aries one of thirteen constellations in the Zodiac contains four stars.
O Aries, one of thirteen constellations, in the Zodiac contains four stars.
O Aries one of thirteen constellations in the Zodiac, contains four stars.