Read the following Case-Study and answer the question that follow.

Vijay graduated from college and got a job at a local grocery store. After working for six months he began to hear voices of people hatching a plan to poison him. He stopped eating and drinking anything in the shop as he felt it tasted bitter and looked green in colour. He reported smelling strange odour in the shop, He would take long winding detours on his way home as he felt people were following him. He told his family that the supervisor was against him and would one day burn down the shop in an attempt to kill him. One day he slapped a customer and swore that someone else made him slap him using his hand. No evidence was found to support his allegations.

A delusion is defined as _______.

A false belief firmly held on inadequate grounds

The correct answer is Option (1) → A false belief firmly held on inadequate grounds

A delusion is a false belief that is firmly held on inadequate grounds. It is not affected by rational argument, and has no basis in reality