Instruction: Answer question based on the following text.
Analyse the following statements about word formation. I. ‘unmelodious’ (l.05) and ‘viable’ (l.22) are formed by suffixation. II. Both ‘mostly’ (l.11) and ‘simply’ (l.17) are formed by only adding the suffix –ly. III. The suffix –ly only forms adverbs. Which ones are INCORRECT?