Put the sentences (a-c) in the correct order, then fill in the blank to make a logical text.

The community center organized a neighborhood clean-up last Saturday. It was a great initiative, but things didn't go exactly as planned________.

a. Everyone gathered at the center early in the morning, eager to help out.

b. Unfortunately, the weather turned bad, and it started raining heavily.

c. The volunteers had to wait for hours until the rain stopped.