Question

In the seventh month after the first return, the people of Israel:

gathered in Jerusalem
reconstructed the altar
laid the foundation of the Temple
offered burnt offerings
gathered in Jerusalem, reconstructed the altar, laid the foundation of the Temple, and offered burnt offerings
gathered in Jerusalem, reconstructed the altar, and offered burnt offerings

Answer 1

What the people in Israel did in the seventh month after the first return is that they gathered in Jerusalem and then they fix and restored the altar, and lastly, they also offered burnt offerings. The answer to this would be the last option. Hope this answer helps.