Omega corporation has adopted working with a "few close suppliers" as a sourcing strategy. Which of teh following is a disadvantage of the strategy?

$$ A$.$ the lack of cost savings for customers and suppliers.

O B$.$ the risk of not being ready for technological change.

O C$.$ the high cost of changing partners.

O D$.$ possible violations of the Sherman Antitrust Act.

O E$.$ the suppliers are less likely to understand the broad objectives of the procuring firm and the end customer.