As dietitian for this 300-person school, I am concerned about the sudd

ARGUMENT
[prem] The school will have to begin serving fish as main source of protein, rather than beef;
[prem] Beef costs more per pound than Fish;
[con] Serving the same amount of protein using Fish as they used to with beef, will increase price per protein;

Ans (D) fish costs less per pound than beef, but seems to contain less protein per pound.

The right answer is D.

Premise: As dietitian for this 300-person school, I am concerned about the sudden shortage of beef.
Premise: It seems that we will have to begin to serve fish as our main source of protein.
Premise: Beef costs more per pound than fish.
Conclusion: I expect that the price I pay for protein will rise if I continue to serve the same amount of protein using fish as I did with beef.

From the argument, one would expect that the dietician for the school will pay less considering beef is more expensive than fish per pound. However, she instead concludes that the price she has to pay for protein will rise if she continues to serve the same amount of protein using fish as she did with beef. Clearly she is assuming that the amount of protein in 1 pound of fish is less than the amount of protein in 1 pound of beef. In addition, for the argument to be sound, then she also has to assume that if she has to adjust the quantity of fish that is required to match the protein content in 1 pound of beef, then the cost of fish will be more than that of beef.

Option D states that per measure of protein, fish is more expensive than beef. This is rightly in line with what is stated above. Hence the answer is D in my view.

As dietitian for this 300-person school, I am concerned about the sudden shortage of beef.It seems that we will have to begin to serve fish as our main source of protein. Even though beef costs more per pound than fish, I expect that the price I pay for protein will rise if I continue to serve the same amount of protein using fish as I did with beef.

Stimulus: The stimulus states that there is a shortage of beef and because of which as a source of protein the dietitian will have to feed the fish. Fish is not as expensive as beef but if the dietitian starts serving fish the cost to serve the same amount of protein as with beef will increase. It means that though fish is cheaper than beef the protein content equivalent is low and because of which more fish will have to be purchased to equalize the protein content.

eg 1 pound of fish costs 10 dollars and gives a protein equivalent of 50 gms

1 pound of beef costs 15 dollars and protein equivalent is 100 gms

So to serve the same amount of protein the dietitian will have to buy 2 pounds of fish which will cost 20 dollars for a meal instead of 15 dollars for beef.
The speaker assumes the Per measure of protein, fish is more expensive than beef

IMO D

The speaker makes which of the following assumptions?

A. Fish is more expensive per pound than beef.

B. Students will soon be paying more for their meals.

C. Cattle ranchers make greater profits than fishermen.

D. Per measure of protein, fish is more expensive than beef.

E. Cattle are more costly to raise than fish.

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