In relation to the Perl regular expression, which of the following modifiers is used for performing case-insensitive pattern matching?

In relation to Perl object oriented programming, which option is the maximal option that provides multiple features, has a big ecosystem, and a thriving user base?

What will be the output of the given Perl program? my Sx= 'MSASSAMAMAC'; my $y = '$SSSS'; my Smodified_x = $x.$y; my leength = length($modified_x); print 'For modif‌ied value of x: $xlength\n'; my $2: substr($modified_x,3.3); print '2 is $z\n';

How many scalars will the array @num have after the following command: my @days = qw (Sunday Monday Tuesday Wednesday Thursday Friday Saturday); my @num = (1..scalar @days);

You may call a subroutine called 'subrout' with arguments 'args', using:

What is @INC?