need to finish racket programming task urgent

Hello! What language - prolog, lisp or scheme - should be used? There is a line "function that produces a function"- as I know, prolog isn't capable of doing that. And also, I need some clarification on what are those Plus

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I can do this within 24-48 hours, I need to get familiar with the related material and maybe do some investigations. You know pyret is different from Scheme. I've done lots of exercises of SICP, and I am pretty famili Plus

I learn prolog for my assignment last year, had some skill to solve in AI or Function language (like scala).