Answer:
Option A,
Step-by-step explanation:
As per the conventional study belief’s, there were six main emotions – disgusted, happy, sad, angry, fear and afraid.
But with the later studies conducted at Glasglow, it became important that there are primarily four major emotions i.e Happy, Sad, Angry and afraid as it was concluded that anger and disgusted & fear and surprise have similar characteristics and they must be removed.
Hence, option A