Select the grammatically correct choice:
1. According to a video on www.pbs.org. Scientists are attempting to bring back from the dead the extinct, Gastric-brooding frog which is known for puking out its babies.
2. According to a video on www.pbs.org, scientists are attempting to bring back from the dead the extinct, Gastric-brooding frog which is known for puking out its babies.
2. According to a video on www.pbs.org, scientists are attempting to bring back from the dead the extinct, Gastric-brooding frog which is known for puking out its babies.
The grammatically correct choice is:
2. According to a video on www.pbs.org, scientists are attempting to bring back from the dead the extinct, Gastric-brooding frog which is known for puking out its babies.