The following SAS program is submitted: %let a = cat; %macro animal(a = frog); %let a = bird; %mend; %animal(a = pig) %put a is &a; Which one of the following is written to the SAS log?

The correct answer is B. a is cat. See the full explanation below for the reasoning.

Question

The following SAS program is submitted:

%let a = cat; %macro animal(a = frog); %let a = bird; %mend; %animal(a = pig) %put a is &a; Which one of the following is written to the SAS log?

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