1. What is purpose? 2. How does purpose work? Who gives purposes?
3. Do you believe that we all have a purpose? Why?
4. Who do you know is living out their purpose?
5. What do you think is your purpose in life? (If you don’t know what your purpose in life is, create one.)

Laborious in this sentence means a task which requires a lot of efforts.

Option C.

Explanation:

Suffix is a kind of affix which is placed after the stem of the word in the word. This explains about the grammatical case of nouns and adjectives.

The word that has been used in the sentence which describes about the activity of the sentence is laborious. The activity speaks about that this task which is of making a four course dinner is not going to be easy and requires a lot of efforts in it.