this may or may not be the correct answer. please answer quickly

Question 8 2.5 pts Lexi Lou, M.D. has an outdated computer system in her clinic and she is debating whether or not to upgrade to a new system. When determining the best course of action, Lexi Lou should consider the following: The cost of future upgrades for the new system only, the cost of future upgrades for the old system are considered a sunk cost Only first-year costs, not ongoing costs. The cost of her existing system as it was a considerable investment None of the above The cost of the new system