Example $1$: You deliver pizzas for a local restaurant. At least once or twice per evening, the person taking phone orders writes down the delivery address incorrectly. Frequently, you are sent to make just one delivery, even on busy days. Last night, after arriving more than an hour late, a customer told you to $$take the pizza back$$ because it was no longer hot. The pizza restaurant is:

both effective and efficient

efficient, but not effective

effective, but not efficient

neither effective nor efficient