24

Gregg Biglieri moves into a tough Philadelphia neighborhood and opens a repair shop. All of the following would be considered by the law as preexisting duty except:

1 The local gang's promise not to torch his shop as long as Gregg pays them $50 a week

2 The local cop's promise to protect the shop from the gang's arson so long as Gregg pays him $50 a week

3 The promise of the shop's previous owner to repair a broken display window

4 The landlord's promise to put in the fire alarm previously stipulated and agreed to in the lease Gregg signed before he moved

It's just multiple choice question. Please don't explain the answer and give me your answer as soon as possible

Just give me the answer only.