Which thesis statement is the most effective?

the department of education’s ad campaign promoting literacy is effective in a number of ways.
using a number of strong persuasive techniques, the department of education tries to convince a wide audience of individuals that strong reading skills are of importance.
the literacy campaign by the department of education is effective because it appeals to a large general audience.
the department of education’s literacy campaign uses several techniques to persuade a broad audience that strong reading skills are beneficial.