Ruby Multiple inheritance

multiple_inheritance.rb

module A
  def foo
    'A#foo'
  end
end

module B
  def foo
    'B#foo'
  end
end

class C
  include A
  include B
end

puts C.new.foo
# B#foo

Object.send :remove_const, :C

class C
  include B
  include A
end

puts C.new.foo
A#foo

puts "C.new.foo owner => #{ C.new.method(:foo).owner }"
# C.new.foo owner => A

class C
  def foo; end
end

puts "C.new.foo owner => #{ C.new.method(:foo).owner }"
# C.new.foo owner => C

class C
  def foo
    # B#foo or A#foo # How to resolve method call collision?
  end
end

class C
def foo
# B#foo How ?
end
end