Two electronics technicians are looking at the representations of a silver atom and a copper atom in the figure above. technician a says that silver and copper are both good conductors because their atoms have single electrons in their outermost orbits. technician b says that silver is a better conductor than copper because the silver atom's free electron is farther from its nucleus than the copper atom's free electron is from its nucleus. which of the following statements is correct?

a. neither of the two technicians is correct.
b. both technician a and technician b are correct.
c. only technician b is correct.
d. only technician a is correct.

Write a program that keeps asking the user for new values to be added to a list until the user enters 'exit' ('exit' should not be added to the list). these values entered by the user are added to a list we call 'initial_list'. then write a function that takes this initial_list as input and returns another list with 3 copies of every value in the initial_list. finally, inside print out all of the values in the new list. for example: input: enter value to be added to list: a enter value to be added to list: b enter value to be added to list: c enter value to be added to list: exit output: a b c a b c a b c note how 'exit' is not added to the list. also, your program needs to be able to handle any variation of 'exit' such as 'exit', 'exit' etc. and treat them all as 'exit'.