Which of the following statements regarding reading from the Economist, "Attempts to make supply chains resilient are likely to fail", is true?

a. It is unnecessary to distinguish true supply-chain failure from delays caused by an unprecedented surge in demand
b. Some politicians in western countries want to "decouple" from China
c. On average, autocracies are doing way worse out of friendshoring than democracies
d. The global supply chain was not resilient from 2005 to 2019