What Does the The Valence Hypothesis of Hemispheric Specialization Propose

What does the the valence hypothesis of hemispheric specialization propose?

A) The experience of valence is generated by the right hemisphere; the experience of arousal is generated by the left hemisphere
B) The left hemisphere is responsible for approach-related emotions; the right hemisphere, for withdrawal-related emotions
C) Negative emotions are perceived, experienced, and expressed by the right hemisphere; positive emotions, by the left hemisphere
D) Negative emotions are perceived, experienced, and expressed by the left hemisphere; positive emotions, by the right hemisphere