At the hour set in the required notices, the legislative body shall proceed to hear and pass upon all written and oral objections. The hearing may be continued from time to time. The legislative body shall consider the recommendations, if any, of affected taxing entities, and all evidence and testimony for and against the adoption of the plan. The legislative body may modify the plan by eliminating or reducing the size and cost of proposed public works, by reducing the amount of proposed debt, or by reducing the portion, amount, or duration of incremental tax revenues to be committed to the district.