Select one or more:

a$.$ PROC CONTENTS output: The 'Obs in First Data Page' value is $212.$

b$.$ PROC CONTENTS output: The 'Obs in First Data Page' value is $217.$

c$.$ PROC PRINT output: The first observation in the sorted dataset has a value of $22\mathrm{.}23436921$ for Acid$\_$insoluble$\_$lignin.

d$.$ PROC CONTENTS output: The 'Obs in First Data Page' value is $220.$

e$.$ PROC PRINT output: The first observation in the sorted dataset has a value of $12\mathrm{.}269515893$ for Acid$\_$insoluble$\_$lignin.

f$.$ PROC PRINT output: The first observation in the sorted dataset has a value of $13\mathrm{.}03542869$ for Acid$\_$insoluble$\_$lignin.

g$.$ PROC PRINT output: The first observation in the sorted dataset has a value of $14\mathrm{.}81552209$ for Acid$\_$insoluble$\_$lignin.

h$.$ PROC CONTENTS output: The 'Obs in First Data Page' value is $222.$