Question

the philadelphia plan was
a book that marked the beginning of the environmental movement.
nixons plan to increase funding for civil rights agencies.
nixons plan to secure the passage of the equal rights amendment.
the first affirmative action program in the united states.

Explanation:

The Philadelphia Plan, implemented under the Nixon administration, was a federal initiative requiring construction contractors working on federally funded projects to set goals for hiring minority workers. It is recognized as the first formal affirmative action program in the U.S. The other options are incorrect: it was not a book about the environmental movement, it did not focus on funding civil rights agencies, and it was not tied to the Equal Rights Amendment.

Answer:

the first affirmative action program in the United States.