Correct option is A
Option (a): Fabricating false evidence - Section 192, I.P.C.: This is correctly matched. Section 192 of the Indian Penal Code (IPC) defines the offence of fabricating false evidence.
Option (b): Harbouring offender - Section 52A, I.P.C.: This is incorrectly matched. Harbouring an offender is dealt with under Section 212 of the IPC, not Section 52A.
Option (c): Public nuisance - Section 267, I.P.C.: This is incorrectly matched. Public nuisance is covered under Section 268 of the IPC, not Section 267.
Option (d): Affray - Section 146, I.P.C.: This is incorrectly matched. Affray is defined under Section 159 of the IPC, not Section 146.