Final answer:
The opportunity cost of producing a second picture frame per day for Andrew depends on the combination he is currently using. It can only be determined if we have information about the specific combination he is using.
Step-by-step explanation:
The opportunity cost of producing a second picture frame per day for Andrew depends on the combination he is currently using. Since Andrew is currently using combination D and producing one picture frame per day, we can determine his opportunity cost for producing a second picture frame by looking at the production possibilities curve.
Based on the information provided, we can see that the opportunity cost of producing additional snowboards at Plant 1 is half a pair of skis, at Plant 2 is 1 snowboard per pair of skis, and at Plant 3 is 2 snowboards per pair of skis. Similarly, the opportunity cost of producing an additional sandwich for Charlie is lattes, and for Maria, it is also lattes.
Therefore, the opportunity cost of Andrew producing a second picture frame per day can only be determined if we have information about the specific combination he is using.