Explanation:

- Option 1: Emasculation

This is considered a grievous hurt as it results in a significant and permanent alteration of the body's natural functioning.

- Option 2: Permanent disfiguration of face

A disfigurement that permanently alters the appearance of the face is regarded as grievous due to its lasting impact on a person's life and identity.

- Option 3: Privation of any member or joint

Loss or impairment of any limb or joint can be classified as grievous hurt, given the severe functional and lifestyle changes it causes.

- Option 4: All of the above

All the situations listed in the options are recognized as grievous hurt due to the serious and lasting repercussions they entail.