Answer:
b. create a separation between church and state
Step-by-step explanation:
The establishment clause is a clause on the First Amendment of the United States Constitution that states that the Congress can't establish any religion. This law doesn't allow the government to establish a religion or to favour one over the others which means that it makes a division between church and state. According to that, the answer is that the establishment clause was designed to create a separtion between church and state.