Answer:
a. national health insurance
Step-by-step explanation:
The Socialist Party of America (SPA) was a multi-tendency democratic socialist political party formed by members of the Social Democratic Party of America and disaffected elements of the Socialist Labor Party of America. It drew significant support from many different groups, including trade unionists, progressive social reformers, populist farmers and immigrants. Because of its relation with the work class it advocated for options c, d and e.
On the other hand they say that American Socialists must fight to make sure that every American who studies hard in school can continue on to college regardless of how much money their parents make and without going deeply into debt. That makes option b also something they advocate for.