Explanation:

Correct option 2: picked

Explanation

'picked quarrel with ..' is the correct phase in context of the sentence.

Let's explore other options

Option 1: "picked on" means to criticize or bully someone unfairly. This does not fit as the sentence implies starting a quarrel.

Option 3: "has picked up" is the present perfect tense, suggesting an ongoing situation or recent past action. It's grammatically correct but doesn't fit the context as the action seems complete.

Option 4: no improvement. ( Isn'i a correct option as the sentnce needs improvement).