NOP Chemicals Ltd produces two joint products, P and Q, from a common process. The following data is available for the month of March 2025:

Total joint production cost: $60,000

Units produced: 2,000 units of P and 3,000 units of Q

Selling price: $40 per unit of P and $30 per unit of Q

Required: a. Allocate the joint production cost using the physical units method. b. Allocate the joint production cost using the sales value at split-off method. c. Prepare the journal entries for the joint cost allocation and the sale of products P and Q. d. Discuss the advantages and disadvantages of each cost allocation method.