please solve all parts urgently

Question # 3: a) Assume any company which is opting LIFO (Last in First out) inventory method for the record of its stock valuation. Support your answer with the help of supposed accounting values and explain the associated physical inventory verification method for that company. (5 Marks) b) If a company manager is making an investing decision regarding purchase of any fixed asset from PP&E category. How does he record the cost associated with this investment and which accounting treatment is to be done to make the provisions in financial statements