Without using 'from collections import Counter'

Write a Python program to combine values in a dictionary format from a list of dictionaries Input: ['item': 'item1', 'amount": 400},{"item":"item2', 'amount": 300},{'item': 'itemt', 'amount': 750}] A Output : {"item": 1150, 'item2': 300) OB. Output : {item1': 11.50, item2: 30.0} OC Output: {"item1': 150, item2: 30) OD. Output: {item1': 2150, 'item2': 750) Put the following in correct order: def _init__(self,s1,52,53): return self.perimeter class Triangle: def perimeter(self): self.s_1 = $_1 self.s_2 = s_2 self.s_3 = s 3 self perimeter = round(s_1 + s_2 + s_3, 3)