Remember Ohm's law

. Plugging in the information gives you

amperes of current.
Answer:
A network backbone connects multiple networks together, allowing them to communicate with each other.
Answer:
a combined device for modulations and demodulations
Solution:
When a customer makes a request or complaint, the goal of customer service is to show the customer how to remain calm and courteous.
Because the work of the costumer care is to serve as customers' first point of contact for complaints, questions, requests, feedback, or any other needs; these professionals are essentially charged with managing relationships between clients and the company.
Thus the required answer is D