What is the impact of Congress’s “truth-in-sentencing” program?

What is the impact of Congress’s “truth-in-sentencing” program?
a. States that enact legislation requiring defendants to tell the truth at sentencing will receive federal funds to construct new courthouses.
b. States that enact legislation requiring an inmate to fulfill 85% of his sentence will receive federal funds to construct new prisons.
c. States that enact legislation offering offender diversion will receive federal funds to subsidize these diversion programs.
d. States that enact legislation providing for inmate education programs will receive matching federal funds to support scholarships for non-offending students.

The textbook I'm using is Corrections in America.