Question: simpleFit is a variable that holds a data frame consisting of the following vectors: ID , Hours, GymVisits, and Incomes. What is the function of

simpleFit is a variable that holds a data frame consisting of the following vectors: ID, Hours, GymVisits, and Incomes. What is the function of the following R command?
simpleFit$Hours
Question 11 options:
Retrieve all elements in the vector called simpleFit$Hours
Retrieve all elements in the row called $Hours
Retrieve all elements in the row called simpleFit$Hours
Retrieve all elements in the vector called Hours

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