Answer:
passing national health care insurance ( B )
Step-by-step explanation:
Passing national health care insurance was a problem that was shelved by the congress during the fair deal program. president Truman proposed the establishment of a universal and very effective healthcare system as part of his fair deal reforms but the congress did not pass the bill so the action was shelved.
The proposal made by president Truman although failed was a stepping stone for other presidents like president Bill Clinton and Barack Obama who followed in his ideas to setup universal health care insurance system for the American people.