X Committed Theft in a Government Building

Multiple Choice

X committed theft in a government building. Z a Chowkidar of the building, kept the gate of the building open with the intention of facilitate X's safe retreat with the stolen property and thereby facilitated his retreat. Which one of the following statement is correct?

A) Guilty of abetment of theft by international aiding
B) Guilty of theft by instigation
C) Not guilty of abetment
D) Guilty of theft.