Can someone suggest a WORD before "Business" in the following sentence...?

[marky_funky]

I am including the following sentence for a law personal statement. It seems clear but I think that there could be an adjective word missing before "business" in the following sentence. Please feel free to suggest any word to include before business.

"During my first BSC (Honours) degree in Computer Science and Business Administration, I learned "____________" business management skills relating to commmercial organizations.

 

[SkyTurtle]

many useful
many helpful
many valuable
a number of

 

[Trevor]

invaluable?