Which One of the Following Is Not Correct About Cathode

Multiple Choice

Which one of the following is not correct about cathode rays?

A) They are deflected to the positive plate of electromagnetic field
B) The nature of cathode rays does not depend upon the nature of gas taken in the discharge tube
C) The nature of cathode rays depends upon the nature of gas taken in the discharge tube
D) Cathode rays are made up of material particles