What happens to the stress of a word when suffixes like –ful, ‐less, ‐ness etc are added?

What happens to the stress of a word when suffixes like –ful, ‐les

1.	What happens to the stress of a word when suffixes like –ful, ‐less, ‐ness etc are added?
A.	No change
B.	Stress comes in the suffixes
C.	Second syllable is stressed
D.	First syllable is stressed.
Answer» B. Stress comes in the suffixes