Which one to choose

I am finishing up my junior year in college. I am majoring in Information Science. I want to get a certification this summer but I don’t know which one to choose. My aunt wants me to get A+ just to show that I know things, but I don’t think that it will help. When I graduate I want a job working with networks whether it be administration, security, or whatever. I want to work with routers, servers, gateways, etc. Would it be better to get MCP,CNA,CCNA or something along those line?