Does anyone know the exact question there?
Hmm. Come to think of it, I guess you could have written about background checks, interviews, etc. of those from the pool, but I always considered those to be lumped into the one HR strategy.
I wrote about diversity management and rewards management, both enhancing the performance and creating an EOC status, with diversity having the added benefit of say, cultural perspective creating a better experience for international guests. Those kinds of people could be considered to be 'best for the business' in that regard, which is the logic I took.
If the first was intended and not enough people addressed it or they have enough complaints, they may always take another look at the question and reconsider the possible answers if it seems ambiguous.