Answer:
Option A, transferring all of parts of program from the public to the private sector, is the right answer.
Step-by-step explanation:
George Walker Bush served the post of the 43rd U.S. President in the period between 2001 to 2009. Since the beginning of his Presidency (2001), Bush discussed the idea of "partial privatization" of Social Security. But it was only after the year 2004 meaning after winning re-election that he started to invest his "political capital" in seeking changes in earnest.
He preferred such a strategy called privatization which had its emphasis on transferring all of the parts of the program from the public to the private sector.