Conversation so far:
how many varieties of quality street chocolates are there
There are 12 Quality Street chocolates.
what kind of candy is quality street
Quality Street is a selection of individual tinned or boxed toffees, chocolates and sweets.
when was quality street first manufactured
Quality Street was first manufactured by Mackintosh's in Halifax, West Yorkshire, England, in 1936.
who makes quality street today
Today Quality Street is produced by Nestlé.

Question: why
Self-contained rewrite: why does nestlé produce quality street