given that X is a normal variable, which of the following statements is/are true: the variable X+3 is also normally distributed b. the variable X-2…

given that X is a normal variable, which of the following statements is/are true:

a. the variable X+3 is also normally distributed

b. the variable X-2 is also normally distributed

c. the variable 5X is also naormally distribued

d. all of the above are true

e none of the above are true