John is eager to dive in and try and figure out his RRSP contribution room. He feels pretty confident in his knowledge after taking a personal tax course. Which of the following statements are true with respect to earned income?

a) Includes income from office or employment for the period individual was resident in Canada during the year.

b) Includes dividend income for the period individual was resident in Canada during the year.

c) Includes pension income received in the year.

d) A and C only.