$6.$ When used wisely, digital marketing is effective for marketers to use. Which of the options below is an example of this?a$.$ Digital marketing makes it possible to recruit new target groups via the internet. b$.$ Digital marketing makes it easier to do mass marketing due to the enormous reach of the internet.$)$ c$.$ It is possible to share large amounts of information with potential customers at low cost. d$.$ The marketing objectives can be achieved with less effort because digital marketing makes it possible to offer 'tailor$-$made' information to potential customers.