$1.$Which statement about supply chains is false?

A$.$Supply chains can become very complex due to a large number of suppliers.

B$.$Different environmental and social standards in different countries pose challenges to global supply chains.

C$.$Modern slavery is a problem in global supply chains.

D$.$Often, there is no significant leverage in supply chains to improve sustainability performance.

$2.$How can the two strategies $$supplier management for risks and performance$$ and $$supply chain management for sustainable products$$ in sustainable supply chain management be distinguished from each other?

A$.$A company that wants to operate sustainably must choose one of the two standard strategies.

B$.$Supplier management for risks and performance is more difficult to perform than supply chain management for sustainable products.

C$.$Supplier management for risks and performance usually does not include a systematic development of suppliers.

D$.$Supply chain management is always the first step, after which supplier evaluation can be carried out.