Using the Notation C = Continuous and D = Discrete

Using the notation C = continuous and D = discrete, indicate whether each of the random variables are discrete or continuous.
a)The number of defective lights in your school's main hallway
b)The barometric pressure at midnight
c)The number of staples left in a stapler
d)The number of sentences in a short story
e)The average oven temperature during the cooking of a turkey
f)The number of lightning strikes during a thunderstorm