which phrases describe something that convinced many americans that communist influence was growing in the united states?
choose all answers that are correct.
social welfare programs
the communist victory in the civil war in china
communist spies in the united states
the soviet union's takeover of eastern europe
the united states' entry into the korean war

The right answer is Communist spies in the United States  and social welfare programs .

It is not today that the US faces Russian spies, many believe, that these spies can influence the American political system, corrupting it and making it communist.  

On the other hand, social welfare programs have a sense of 'helping' entrepreneurs (owners of capital) and workers, softening the asymmetric and savage relationship between capital and labor. This is also seen as communist threat because it strengthens the working class, which was one of the principles espoused by Carl Marx.

the use of email to replace slower surface mail.

i think the answer is b.