Quit groveling, Lou! Of course I'll help you.

http://dictionary.reference.com/browse/groveling

A simple strategy would be to replace each option with groveling in the sentence above and see what makes sense. Quit ignoring, Lou! Of course I'll help you. That's the first one. Now try the rest.

My answer is begging.??

Right. It's begging.

Jen has a good idea -- but it's always wise to look up an unfamiliar word in a dictionary.

I just learned the "real" definition of mathematics from a dictionary.

thanks for help.

To find the synonym of the word "groveling," you can either consult a thesaurus or rely on your knowledge of common synonyms.

In this case, the synonym for "groveling" is "begging." Groveling means to beg or plead in a subservient manner, so option b, begging, is the correct answer.