Correct Answer: (b) smell
Solution:Stative verbs are those verbs which express a state of condition. They do not refer to a physical action. Sense and emotions like hear, smell, see, love, hate etc are different types of stative verbs. However, these verbs can't be used in (-ing form) for example, Hear, Smell(Correct) and Hearing, Smelling (Incorrect). Hence, 'I smell something burning' will be the most appropriate answer.