my @RowOne = ("a","b","c");
my @RowTwo = ("d","e");
my @RowThree = ("f","g","h","i");
my @TwoDimArray = (\@RowOne,\@RowTwo,\@RowThree);
my $ChosenRow = 1;
#
#Now I need one of the following:
#The Chosen Array
my @ChosenArray = ???
#or
#The number of elements in the Chosen Array
my $NumberOfElements = ???