Among the new challenges created by the loT, which of the following is related to economic development issues?

a$)$ What are the communication infrastructure and broadband Internet network needed?

b$)$ What role do the international, federal, and state levels contribute toward legal, tax, and regulatory requirements regarding loT$-$related business transactions that involve payment for goods and services?

c$)$ How do you protect your family's identity and privacy data from theft or unauthorized access that can lead to identity theft?

d$)$ How well do IoT manufacturers and ASP developers ensure that devices communicate securely$?$