o get the data from a large Stata file into a DataFrame, you usually
a) read both the metadata and the Stata data directly into DataFrames and use the metadata DataFrame to help understand the data in the data DataFrame
b) read just the Stata data into a DataFrame and read the metadata only if you need it to help understand the Stata data
c) read the metadata and then use the DataFrame() constructor to build a DataFrame for selected data in the Stata file
d) read the metadata, build a DataFrame for the metadata, and then read selected columns of the data in the Stata file into a DataFrame