The most important step in health education of a community is –
Only one of the options provided is included under the 'principles of health education'.
'Health educators must find out the real health needs of the people. these needs are termed as felt need, ie. needs which the people feel about themselves'.

Principles of Health Education 

Interest : Identification of local needs
Participation
Known to unknown
Comprehension
Reinforcement 
Motivation
Learning by doing
Soil, seed and sower
Good human relations
Leaders
Contact with doctors
Community discussion
Announcements to the community by loud speakers
Knowledge of local needs