Question: What does the merge ( ) function's 'left' join option do in R ? Question 2 6 Answer a . Combines all rows from both

What does the merge() function's 'left' join option do in R?
Question 26Answer
a.
Combines all rows from both objects
b.
Combines all rows from the left object only
c.
Combines rows based on the left-most columns
d.
Combines rows with non-matching dates

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