(b) [2 points] Which of the following location strategies will most improve your supply chain's resiliency for a given part? 1. Sourcing your parts only from suppliers located within 50 miles of Austin 2. Sourcing some of your parts from suppliers in Germany and others from Vietnam 3. Sourcing your parts from a single supplier in Malaysia 4. Sourcing your parts from a single supplier, which is offering a low cost due to its financial troubles