Which expression is making proper use of the "LOAD" function in Pig Latin?
A. A = LOAD data -> name,age,gpa
B. A = LOAD(‘data’,[name, age, gpa]);
C. A = LOAD ‘data’ -> {name:chararray, age:int, gpa:float};
D. A = LOAD ‘data’ AS (name:chararray, age:int, gpa:float);
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