Final answer:
Lookout Mountain extends across Alabama, Georgia, and Tennessee; it is not found in Missouri. The correct answer is b) Tennessee.
Step-by-step explanation:
Lookout Mountain is a mountain ridge known for its scenic beauty and historical significance. It stretches across three states, those being Alabama, Georgia, and Tennessee. It is not located in Missouri. So, the correct answer to which other state Lookout Mountain stretches across is b) Tennessee.