In Webtop, by default, what is the maximum number of results that are returned for a search?

A.
1,000 results, with up to 350 results from a single source

B.
500 results, with up to 200 results from a single source

C.
750 results, with up to 250 results from a single source

D.
2,000 results with up to 500 results from single source