Part A
The main point the speaker makes in paragraph 1 is:
3. Long-term solutions are just as important as quickly fixing current problems.
Part B
The best support from paragraph 3 for the answer selected in Part A is:
4. by explaining that the measures recommended by the Committee on Economic Security will create a foundation for recovery but will not provide comprehensive answers.
This aligns with the idea that while immediate issues are addressed, the measures proposed are more about establishing a sustainable and secure future rather than offering complete solutions for all current problems.