Directions: Study the following information carefully and answer the given questions: In a certain code language, ‘he who knows Sam’ is written as ‘ma co he mx’. ‘Sam is a bad doctor’ is written as ‘mx mh la sa ox’. ‘Ravi knows Sam’ is written as ‘mx he kl’. ‘who is doctor under Ravi’ is written as ‘kl mh co ze ox’.
What does the code ‘co’ stand for?

Options

A. who
B. knows
C. he
D. sam