Which of the Following Best Exemplifies an Ethical Dilemma

Which of the following best exemplifies an ethical dilemma?

A) Javier has been doubtful about a car he purchased recently,and hence has been reading only good reviews about the car to console himself.
B) After seeing a whole new collection of phones at a store,Max is regretting the purchase of an outdated phone he made last month.
C) The manager at Almas Inc.has to make a vendor choice between his under-qualified cousin and a highly-experienced,trusted supplier.
D) Andrew is responsible for deciding whether he should upgrade the manufacturing unit with new machines and reduce costs for clients,or retain the impoverished manual labor.
E) Samantha has to decide whether the annual profits of the company should be distributed to the employees as a salary hike or in the form of non-monetary benefits.