Answer:
Complex villages were at risk for diseases.
Complex villages had artisans with special skills.
Complex villages stored food in buildings.
Step-by-step explanation:
The complex villages were well connected and functioned as towns (though smaller), so being linked with the surrounding area and beyond led to risks of diseases.
The complex villages had permanent buildings, so this statement is not correct.
Complex villages had people specialized in certain fields, thus they had artisans with special skills.
Complex villages worked in a hierarchical manner, so this statement is not correct.
Having a relatively large population in small area meant that larger amounts of food are needed, which is why the food was stored in buildings in the complex villages.