The suffixes -ed, -er, and -ing can be added to the end of the word shop.


For which if the following do you need to double the final consonant before adding the suffix?


a: shop + -ed

b: all of the above

c: shop + -er

d: shop + -ing


For which of the following do you need to drop the final "e" before adding the suffix?


a: advise + -able

b: care + -ful

c: clue + -less

d: manage + -ment