Which sentence would be the best topic sentence for Katie's paragraph?
1. Missions in California needed to grow a great deal of food in order to survive.
02. Today, some California missions still feature large metal church bells that were sent from Spain.
3. The first California mission, San Diego de Alcalá, was named after a well-known Roman Catholic saint.
a
4. Missions built between the late 1700s and the early 1800s are an important part of California's history