Which group of words is a fragment? It empties into San Francisco Bay. The tallest trees in California are the redwoods. Entered the Union in 1850 as the 31st state. At almost 15,000 feet tall, Mt. Whitney is the highest point in the state.
I'm pretty sure that a fragment means its not a complete sentence. If this is the case then, Entered the Union in 1850 as the 31st state would be the correct answer since it doesn't have a subject to be a sentence. Let me know if I'm wrong.
