Which actions taken by an author ensure that writing guidelines have been followed when creating a paper for an assignment? Select all that apply.
a. Use commas when there is a list with three or more things.
b. Enter two spaces after a period.
c. Use one space after a period
d. The number 7 would be written out (seven) if it's not in exceptions expressed like time, date, and age
e. The number of ages should be spelled out