State whether each of the following statements is true or false, or whether the answer ultimately depends on some other factors

(which you should identify).

a. Speed of delivery is an efficiency measure for the transportation driver.

b. Large inventory is a warning sign for poor supply chain efficiency.

c. Location of plants and DCs are tactical decisions.

d. Selection of suppliers is an operational decision.

e. Increasing product variety improves supply chain responsiveness.

f. Increasing inventory turns increases working capital.

g. Increasing days of inventory increases ROA.

h. To decrease supply chain cost, inventory turns should be increased.

i. The Japanese earthquake and tsunami of 2011 were a hazard risk to the supply chain.

j. Failure of IT systems is considered an operational risk to the supply chain.

k. Operational risks have a more significant impact on supply chain performance than hazard risks.

l. Hazard risks are uncontrollable rare events that disrupt supply chain performance.

m. Functional products are best matched with responsive supply chains.