Which of the following are not state functions ? (I) q + w (II) q (III) w (IV) H $-$ TS

Question

Which of the following are not state functions ?
(I) q + w (II) q
(III) w (IV) H $-$ TS

(I), (II) and (III)

(II) and (III)

(I) and (IV)

(II), (III) and (IV)

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