Select the option that represents the letters that, when placed from left to right in the blanks, will complete the letter series. M _ W Q U N S _ Q U O S W _ U P S _ Q _

S Q U W W S Q W U W S W Q W U S W Q U W

S W Q W U

After dividing it into groups  and comparing the corresponding term we, get "S W Q W U" as the repetitive term because it follows the pattern. M S W Q U N S W Q U O S W Q U P S W Q U