Manufactures largely rely on middlemen to perform the distribution task because: Select one: O a. they create time, place and form utility for consumers O b. middlemen can perform the task more efficiently O c. manufactures may not be capable of distributing directly to their end consumers O d. all of the statements are correct How many candidate keys the following table hose Emp Person Job District Jim Jim Sally Sally Jim Cleaning Crimson Gardening Pink Dog walking Pink Gardening Pink Cleaning Scarlet There are no candidate keys Two candidate keys Three candidate keys One candidate key