Parts of the following sentence are given as options. Identify the part that contains a grammatical error. If there is no error, select 'No error'.
Ashwatthama, Drona’s / only son, has had developed / a fondness for lavish living.
1
No error
2
a fondness for lavish living.
3
only son, has had developed
4
Ashwatthama, Drona’s