Consider the following statements regarding the Farm Plan Development approach under the Directorate of Agriculture in Kerala:

Statement 1: The Directorate of Agriculture coordinates the activities of three schemes under the Farm Plan Development approach through governance at the State, District, and Block levels.

Statement 2: A technical group at Kerala Agricultural University, led by the Director of Extension, provides technical inputs only during the initial stages of the Farm Plan-Based Approach.

Statement 3: Block level monitoring of the program is done by the Assistant Directors of Agriculture and Principal Agricultural Officers with proper documentation and a field book maintained by the farmer.

Statement 4: A comprehensive database is maintained for each selected farm unit, recording details such as expenses incurred, yields, and income generated.

Which of the above statements are correct?