question_answer

Which of the following statements are correct about dot matrix printers?

I. They are the most expensive printers.

II. They use matrix of pins.

III. Maintenance cost is generally high for such computer.

IV. It is a type of impact printer.

Select the correct answer using the codes given below.

 

A)  I and II                                    

B)  II and III

C)  III and IV                                 

D)  I and IV